#28818E
Closest named color: Ocean (#017B92). oklch(55.7% 0.083 209.1), rgb(40, 129, 142).
Aa
Black text reads best on this color (4.62:1).
About this color
#28818E is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 56%, its chroma 0.083 and its hue 209°. Its hue sits on the cool side of the wheel. The nearest named color is Ocean (#017B92), ΔE 0.026 away. Black text reads best on it, at 4.62:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (56%) |
| Chroma | moderately saturated (0.083) |
| Temperature | cool |
| Nearest name | Ocean (#017B92) |
| Black text | 4.62:1 |
| White text | 4.54:1 |
Values
| HEX | #28818E |
| RGB | rgb(40, 129, 142) |
| HSL | hsl(188, 56%, 36%) |
| OKLCH | oklch(55.7% 0.083 209.1) |
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 #28818E | 4.54:1 | AA | Lc -76.7 | Fine for body text |
| Black text on #28818E | 4.62:1 | AA | Lc 32.8 | Non-text elements, placeholder text |
| #28818E text on white | 4.54:1 | AA | Lc 71.3 | Content text, not long reading |
| #28818E text on black | 4.62:1 | AA | Lc -30.4 | 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 600.
-
Step 50
50
#F2F6F7
oklch(97% 0.004 214.3)
-
Step 100
100
#E2ECEE
oklch(93.6% 0.011 211)
-
Step 200
200
#CADDE0
oklch(88.4% 0.021 208.1)
-
Step 300
300
#A5C8CE
oklch(80.9% 0.038 209.1)
-
Step 400
400
#73ABB5
oklch(70.6% 0.06 209.9)
-
Step 500
500
#4B96A2
oklch(63% 0.076 209.1)
-
Step 600
600 (this color)
#28818E
oklch(55.7% 0.083 209.1)
-
Step 700
700
#186D78
oklch(49.2% 0.078 208.1)
-
Step 800
800
#185962
oklch(42.8% 0.065 208.4)
-
Step 900
900
#1C4950
oklch(37.7% 0.05 209.1)
-
Step 950
950
#122B2F
oklch(27.1% 0.032 209)
#28818E 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) | #757C8F | 0.079 |
| Deuteranopia (no green cones) | #67718E | 0.073 |
| Tritanopia (no blue cones) | #008785 | 0.029 |
| Achromatopsia (no color) | #767676 | 0.084 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #28818E
#28818E
oklch(55.7% 0.083 209.1)
- #9F6057
#9F6057
oklch(55.7% 0.084 28.8)
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 #28818E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Ocean #017B92 ΔE 0.026
- Teal #008080 ΔE 0.028
- Teal Blue #01889F ΔE 0.029
- Dark Cyan #008B8B ΔE 0.033
- Deep Aqua #08787F ΔE 0.037
- Bluegreen #017A79 ΔE 0.041
- Cerulean #457B9D ΔE 0.041
- Stormy Blue #507B9C ΔE 0.047
Use #28818E 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.