#288A92
Closest named color: Dark Cyan (#008B8B). oklch(58.2% 0.088 203.1), rgb(40, 138, 146).
Aa
Black text reads best on this color (5.14:1).
About this color
#288A92 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 58%, its chroma 0.088 and its hue 203°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Cyan (#008B8B), ΔE 0.018 away. Black text reads best on it, at 5.14:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.088) |
| Temperature | cool |
| Nearest name | Dark Cyan (#008B8B) |
| Black text | 5.14:1 |
| White text | 4.08:1 |
Values
| HEX | #288A92 |
| RGB | rgb(40, 138, 146) |
| HSL | hsl(185, 57%, 36%) |
| OKLCH | oklch(58.2% 0.088 203.1) |
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 #288A92 | 4.08:1 | AA large text | Lc -73.2 | Content text, not long reading |
| Black text on #288A92 | 5.14:1 | AA | Lc 36.4 | Non-text elements, placeholder text |
| #288A92 text on white | 4.08:1 | AA large text | Lc 67.7 | Content text, not long reading |
| #288A92 text on black | 5.14:1 | AA | Lc -34.0 | 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
#E2ECED
oklch(93.6% 0.011 204.1)
-
Step 200
200
#C9DEDF
oklch(88.5% 0.022 200.2)
-
Step 300
300
#A4C9CC
oklch(81% 0.04 202.5)
-
Step 400
400
#70ADB2
oklch(70.8% 0.063 202.4)
-
Step 500
500
#45989F
oklch(63.1% 0.081 202.8)
-
Step 600
600 (this color)
#288A92
oklch(58.2% 0.088 203.1)
-
Step 700
700
#096E75
oklch(49.1% 0.082 202.7)
-
Step 800
800
#105A5F
oklch(42.8% 0.068 202)
-
Step 900
900
#184A4E
oklch(37.8% 0.053 202.6)
-
Step 950
950
#102B2E
oklch(27% 0.033 205.1)
#288A92 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) | #7F8493 | 0.088 |
| Deuteranopia (no green cones) | #707992 | 0.081 |
| Tritanopia (no blue cones) | #00908C | 0.025 |
| Achromatopsia (no color) | #7E7E7E | 0.088 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #288A92
#288A92
oklch(58.2% 0.088 203.1)
- #A96562
#A96562
oklch(58.1% 0.088 22.9)
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 #288A92, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Cyan #008B8B ΔE 0.018
- Teal Blue #01889F ΔE 0.025
- Teal Green #0A9396 ΔE 0.026
- Dusty Teal #4C9085 ΔE 0.040
- Teal #008080 ΔE 0.041
- Sea #3C9992 ΔE 0.049
- Blue NCS #118AB2 ΔE 0.050
- Ocean #017B92 ΔE 0.050
Use #288A92 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.