#42B293
Closest named color: Greeny Blue (#42B395). oklch(69.1% 0.112 171.4), rgb(66, 178, 147).
Aa
Black text reads best on this color (8.02:1).
About this color
#42B293 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 69%, its chroma 0.112 and its hue 171°. Its hue sits on the cool side of the wheel. The nearest named color is Greeny Blue (#42B395), ΔE 0.003 away. Black text reads best on it, at 8.02:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (69%) |
| Chroma | moderately saturated (0.112) |
| Temperature | cool |
| Nearest name | Greeny Blue (#42B395) |
| Black text | 8.02:1 |
| White text | 2.61:1 |
Values
| HEX | #42B293 |
| RGB | rgb(66, 178, 147) |
| HSL | hsl(163, 46%, 48%) |
| OKLCH | oklch(69.1% 0.112 171.4) |
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 #42B293 | 2.61:1 | Fails | Lc -55.9 | Large or bold text, headings |
| Black text on #42B293 | 8.02:1 | AAA | Lc 53.2 | Large or bold text, headings |
| #42B293 text on white | 2.61:1 | Fails | Lc 50.8 | Large or bold text, headings |
| #42B293 text on black | 8.02:1 | AAA | Lc -51.1 | Large or bold text, headings |
Tints and shades
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
#C1E2D6
oklch(88.5% 0.038 171.4)
-
Step 300
300
#92D0BB
oklch(80.9% 0.07 171.4)
-
Step 400
400 (this color)
#42B293
oklch(69.1% 0.112 171.4)
-
Step 500
500
#00A180
oklch(63.1% 0.123 171.4)
-
Step 600
600
#00876B
oklch(55.5% 0.108 171.4)
-
Step 700
700
#00725A
oklch(49.2% 0.096 171.5)
-
Step 800
800
#005D49
oklch(42.6% 0.083 171.6)
-
Step 900
900
#004E3D
oklch(37.8% 0.073 171.8)
-
Step 950
950
#002F23
oklch(27.2% 0.053 170.5)
#42B293 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) | #ADA792 | 0.115 |
| Deuteranopia (no green cones) | #9D9B95 | 0.110 |
| Tritanopia (no blue cones) | #00B3A9 | 0.034 |
| Achromatopsia (no color) | #A0A0A0 | 0.113 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #42B293
#42B293
oklch(69.1% 0.112 171.4)
- #D07EA4
#D07EA4
oklch(69.1% 0.111 351.1)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #42B293, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greeny Blue #42B395 ΔE 0.003
- Light Sea Green #20B2AA ΔE 0.035
- Tea #65AB7C ΔE 0.036
- Dark Seafoam Green #3EAF76 ΔE 0.040
- Topaz #13BBAF ΔE 0.040
- Bluey Green #2BB179 ΔE 0.040
- Dark Seafoam #1FB57A ΔE 0.044
- Green Blue #01C08D ΔE 0.047
Use #42B293 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.