Greeny Blue #42B395
Greeny Blue is a medium-light, moderately saturated teal or cyan with hex code #42B395 and RGB rgb(66, 179, 149).
Aa
Black text reads best on this color (8.11:1).
About this color
#42B395 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 69%, its chroma 0.112 and its hue 172°. Its hue sits on the cool side of the wheel. It is the named color Greeny Blue. Black text reads best on it, at 8.11:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (69%) |
| Chroma | moderately saturated (0.112) |
| Temperature | cool |
| Nearest name | Greeny Blue |
| Black text | 8.11:1 |
| White text | 2.58:1 |
Colors that go with Greeny Blue
Matches found by rotating Greeny Blue around the OKLCH hue wheel, each labelled with the closest name in our list.
Complementary
The opposite hue (180°).
Analogous
Neighbouring hues, 30° either side.
Triadic
Three hues spaced 120° apart.
Color palettes with Greeny Blue
Curated color palettes that contain a color within ΔE 0.06 (OKLab) of Greeny Blue, closest first.
Similar named colors
The eight named colors closest to Greeny Blue, with their ΔE distance.
- Light Sea Green #20B2AA ΔE 0.033
- Topaz #13BBAF ΔE 0.037
- Tea #65AB7C ΔE 0.038
- Dark Seafoam Green #3EAF76 ΔE 0.042
- Bluey Green #2BB179 ΔE 0.043
- Dark Seafoam #1FB57A ΔE 0.046
- Green Blue #01C08D ΔE 0.046
- Medium Sea Green #3CB371 ΔE 0.051
More about Greeny Blue
How to make Greeny Blue
A starting recipe from common paint colors, found with a spectral paint model (the color mixer’s paint mode). Real pigments vary, so mix a small test batch and adjust.
- 2 parts blue
- 2 parts white
- 1 part yellow
Recipe result: #5CA98C, a difference of ΔE 0.030 from Greeny Blue. That is close; add a little more of one paint to match.
Codes for Greeny Blue in every format
| HEX | #42B395 |
| RGB | rgb(66, 179, 149) |
| HSL | hsl(164, 46%, 48%) |
| OKLCH | oklch(69.4% 0.112 172.2) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #42B395 | 2.58:1 | Fails | Lc -55.4 | Large or bold text, headings |
| Black text on #42B395 | 8.11:1 | AAA | Lc 53.7 | Large or bold text, headings |
| #42B395 text on white | 2.58:1 | Fails | Lc 50.3 | Large or bold text, headings |
| #42B395 text on black | 8.11:1 | AAA | Lc -51.7 | Large or bold text, headings |
Shades and tints of Greeny Blue
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 400.
-
Step 50
50
#F0F8F5
oklch(97.2% 0.009 171.8)
-
Step 100
100
#DDEEE8
oklch(93.5% 0.02 172.8)
-
Step 200
200
#C0E2D6
oklch(88.5% 0.039 172)
-
Step 300
300
#92D0BC
oklch(81% 0.07 172.4)
-
Step 400
400 (this color)
#42B395
oklch(69.4% 0.112 172.2)
-
Step 500
500
#00A181
oklch(63.2% 0.122 172)
-
Step 600
600
#00876C
oklch(55.5% 0.108 172.1)
-
Step 700
700
#00725B
oklch(49.2% 0.095 172.3)
-
Step 800
800
#005D4A
oklch(42.6% 0.082 172.5)
-
Step 900
900
#004E3D
oklch(37.8% 0.073 171.8)
-
Step 950
950
#002E24
oklch(26.9% 0.051 173.7)
Greeny Blue with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #AEA894 | 0.116 |
| Deuteranopia (no green cones) | #9D9C97 | 0.110 |
| Tritanopia (no blue cones) | #00B5AA | 0.032 |
| Achromatopsia (no color) | #A1A1A1 | 0.112 |
Use Greeny Blue in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.