#288493
Closest named color: Teal Blue (#01889F). oklch(56.7% 0.086 210.7), rgb(40, 132, 147).
Aa
Black text reads best on this color (4.81:1).
About this color
#288493 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 57%, its chroma 0.086 and its hue 211°. Its hue sits on the cool side of the wheel. The nearest named color is Teal Blue (#01889F), ΔE 0.020 away. Black text reads best on it, at 4.81:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (57%) |
| Chroma | moderately saturated (0.086) |
| Temperature | cool |
| Nearest name | Teal Blue (#01889F) |
| Black text | 4.81:1 |
| White text | 4.36:1 |
Values
| HEX | #288493 |
| RGB | rgb(40, 132, 147) |
| HSL | hsl(188, 57%, 37%) |
| OKLCH | oklch(56.7% 0.086 210.7) |
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 #288493 | 4.36:1 | AA large text | Lc -75.4 | Fine for body text |
| Black text on #288493 | 4.81:1 | AA | Lc 34.2 | Non-text elements, placeholder text |
| #288493 text on white | 4.36:1 | AA large text | Lc 69.9 | Content text, not long reading |
| #288493 text on black | 4.81:1 | AA | Lc -31.7 | 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
#CADDE1
oklch(88.5% 0.021 211.8)
-
Step 300
300
#A5C8CF
oklch(81% 0.039 211.1)
-
Step 400
400
#72ABB6
oklch(70.6% 0.061 211)
-
Step 500
500
#4896A4
oklch(62.9% 0.079 210.8)
-
Step 600
600 (this color)
#288493
oklch(56.7% 0.086 210.7)
-
Step 700
700
#136D7A
oklch(49.2% 0.08 210)
-
Step 800
800
#155963
oklch(42.8% 0.066 209.5)
-
Step 900
900
#1A4951
oklch(37.7% 0.052 210.5)
-
Step 950
950
#112B2F
oklch(27% 0.033 208.6)
#288493 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) | #787F94 | 0.081 |
| Deuteranopia (no green cones) | #697493 | 0.074 |
| Tritanopia (no blue cones) | #008B89 | 0.032 |
| Achromatopsia (no color) | #797979 | 0.087 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #288493
#288493
oklch(56.7% 0.086 210.7)
- #A36357
#A36357
oklch(56.8% 0.086 31.3)
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 #288493, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Teal Blue #01889F ΔE 0.020
- Dark Cyan #008B8B ΔE 0.030
- Ocean #017B92 ΔE 0.033
- Teal #008080 ΔE 0.035
- Cerulean #457B9D ΔE 0.040
- Teal Green #0A9396 ΔE 0.044
- Stormy Blue #507B9C ΔE 0.046
- Blue NCS #118AB2 ΔE 0.047
Use #288493 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.