#45BB9F
Closest named color: Greeny Blue (#42B395). oklch(71.8% 0.113 174.3), rgb(69, 187, 159).
Aa
Black text reads best on this color (8.86:1).
About this color
#45BB9F is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 72%, its chroma 0.113 and its hue 174°. Its hue sits on the cool side of the wheel. The nearest named color is Greeny Blue (#42B395), ΔE 0.024 away. Black text reads best on it, at 8.86:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (72%) |
| Chroma | moderately saturated (0.113) |
| Temperature | cool |
| Nearest name | Greeny Blue (#42B395) |
| Black text | 8.86:1 |
| White text | 2.36:1 |
Values
| HEX | #45BB9F |
| RGB | rgb(69, 187, 159) |
| HSL | hsl(166, 46%, 50%) |
| OKLCH | oklch(71.8% 0.113 174.3) |
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 #45BB9F | 2.36:1 | Fails | Lc -51.3 | Large or bold text, headings |
| Black text on #45BB9F | 8.86:1 | AAA | Lc 57.6 | Large or bold text, headings |
| #45BB9F text on white | 2.36:1 | Fails | Lc 46.4 | Large or bold text, headings |
| #45BB9F text on black | 8.86:1 | AAA | Lc -55.7 | 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
#EFF8F5
oklch(97.2% 0.01 174.3)
-
Step 100
100
#DDEFE9
oklch(93.7% 0.021 173.9)
-
Step 200
200
#BFE2D7
oklch(88.4% 0.04 174.4)
-
Step 300
300
#90D0BD
oklch(80.9% 0.071 174)
-
Step 400
400 (this color)
#45BB9F
oklch(71.8% 0.113 174.3)
-
Step 500
500
#00A084
oklch(63% 0.119 174.3)
-
Step 600
600
#00876F
oklch(55.6% 0.106 174.3)
-
Step 700
700
#00715D
oklch(49% 0.093 174.7)
-
Step 800
800
#005D4C
oklch(42.7% 0.081 174.6)
-
Step 900
900
#004E3F
oklch(37.8% 0.072 174.1)
-
Step 950
950
#002E25
oklch(26.9% 0.05 175.6)
#45BB9F 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) | #B5B09E | 0.118 |
| Deuteranopia (no green cones) | #A4A3A1 | 0.113 |
| Tritanopia (no blue cones) | #00BDB3 | 0.031 |
| Achromatopsia (no color) | #A8A8A8 | 0.114 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #45BB9F
#45BB9F
oklch(71.8% 0.113 174.3)
- #DB85A8
#DB85A8
oklch(71.7% 0.113 354.4)
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 #45BB9F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greeny Blue #42B395 ΔE 0.024
- Topaz #13BBAF ΔE 0.027
- Light Sea Green #20B2AA ΔE 0.040
- Green Blue #01C08D ΔE 0.041
- Greenblue #23C48B ΔE 0.047
- Tea #65AB7C ΔE 0.054
- Dark Seafoam #1FB57A ΔE 0.057
- Bluey Green #2BB179 ΔE 0.058
Use #45BB9F 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.