#42908B
Closest named color: Dusty Teal (#4C9085). oklch(60.3% 0.077 189.7), rgb(66, 144, 139).
Aa
Black text reads best on this color (5.59:1).
About this color
#42908B is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 60%, its chroma 0.077 and its hue 190°. Its hue sits on the cool side of the wheel. The nearest named color is Dusty Teal (#4C9085), ΔE 0.011 away. Black text reads best on it, at 5.59:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (60%) |
| Chroma | moderately saturated (0.077) |
| Temperature | cool |
| Nearest name | Dusty Teal (#4C9085) |
| Black text | 5.59:1 |
| White text | 3.75:1 |
Values
| HEX | #42908B |
| RGB | rgb(66, 144, 139) |
| HSL | hsl(176, 37%, 41%) |
| OKLCH | oklch(60.3% 0.077 189.7) |
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 #42908B | 3.75:1 | AA large text | Lc -70.4 | Content text, not long reading |
| Black text on #42908B | 5.59:1 | AA | Lc 39.2 | Non-text elements, placeholder text |
| #42908B text on white | 3.75:1 | AA large text | Lc 64.9 | Content text, not long reading |
| #42908B text on black | 5.59:1 | AA | Lc -36.8 | Non-text elements, placeholder text |
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 500.
-
Step 50
50
#F2F7F6
oklch(97.2% 0.005 183)
-
Step 100
100
#E2ECEB
oklch(93.5% 0.011 189.8)
-
Step 200
200
#CADEDC
oklch(88.5% 0.022 189.5)
-
Step 300
300
#A6C9C6
oklch(81% 0.038 190)
-
Step 400
400
#74ADA9
oklch(70.7% 0.06 190.3)
-
Step 500
500 (this color)
#42908B
oklch(60.3% 0.077 189.7)
-
Step 600
600
#28837E
oklch(55.6% 0.084 189.7)
-
Step 700
700
#186F6A
oklch(49.2% 0.078 189.1)
-
Step 800
800
#185A57
oklch(42.7% 0.064 190.6)
-
Step 900
900
#1C4A47
oklch(37.6% 0.05 189.4)
-
Step 950
950
#122B2A
oklch(26.9% 0.031 192.1)
#42908B 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) | #89898B | 0.082 |
| Deuteranopia (no green cones) | #7C808C | 0.077 |
| Tritanopia (no blue cones) | #03938E | 0.026 |
| Achromatopsia (no color) | #848484 | 0.078 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #42908B
#42908B
oklch(60.3% 0.077 189.7)
- #AA6E77
#AA6E77
oklch(60.4% 0.077 9.8)
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 #42908B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Teal #4C9085 ΔE 0.011
- Sea #3C9992 ΔE 0.025
- Teal Green #0A9396 ΔE 0.027
- Dark Cyan #008B8B ΔE 0.035
- Blue Green #0F9B8E ΔE 0.036
- Persian Green #2A9D8F ΔE 0.038
- Grey Teal #5E9B8A ΔE 0.045
- Slate Green #658D6D ΔE 0.049
Use #42908B 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.