#288478
Closest named color: Teal (#008080). oklch(55.7% 0.087 182.7), rgb(40, 132, 120).
Aa
Black text reads best on this color (4.66:1).
About this color
#288478 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 56%, its chroma 0.087 and its hue 183°. Its hue sits on the cool side of the wheel. The nearest named color is Teal (#008080), ΔE 0.024 away. Black text reads best on it, at 4.66:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (56%) |
| Chroma | moderately saturated (0.087) |
| Temperature | cool |
| Nearest name | Teal (#008080) |
| Black text | 4.66:1 |
| White text | 4.50:1 |
Values
| HEX | #288478 |
| RGB | rgb(40, 132, 120) |
| HSL | hsl(172, 53%, 34%) |
| OKLCH | oklch(55.7% 0.087 182.7) |
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 #288478 | 4.50:1 | AA | Lc -76.4 | Fine for body text |
| Black text on #288478 | 4.66:1 | AA | Lc 33.1 | Non-text elements, placeholder text |
| #288478 text on white | 4.50:1 | AA | Lc 71.0 | Content text, not long reading |
| #288478 text on black | 4.66:1 | AA | Lc -30.7 | 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
#F2F7F6
oklch(97.2% 0.005 183)
-
Step 100
100
#E2ECEA
oklch(93.5% 0.011 182.9)
-
Step 200
200
#CADEDA
oklch(88.5% 0.022 182.5)
-
Step 300
300
#A6C9C3
oklch(80.9% 0.038 183.8)
-
Step 400
400
#74AEA4
oklch(70.8% 0.062 182.5)
-
Step 500
500
#4B998E
oklch(63% 0.079 183.4)
-
Step 600
600 (this color)
#288478
oklch(55.7% 0.087 182.7)
-
Step 700
700
#186F65
oklch(49% 0.08 183.4)
-
Step 800
800
#185B52
oklch(42.8% 0.067 182.2)
-
Step 900
900
#1C4B44
oklch(37.8% 0.052 182.2)
-
Step 950
950
#122C28
oklch(27.1% 0.033 182.6)
#288478 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) | #7E7C78 | 0.093 |
| Deuteranopia (no green cones) | #707379 | 0.086 |
| Tritanopia (no blue cones) | #008780 | 0.015 |
| Achromatopsia (no color) | #777777 | 0.087 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #288478
#288478
oklch(55.7% 0.087 182.7)
- #9E5D6F
#9E5D6F
oklch(55.7% 0.088 2.5)
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 #288478, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Teal #008080 ΔE 0.024
- Dark Cyan #008B8B ΔE 0.030
- Bluegreen #017A79 ΔE 0.037
- Deep Aqua #08787F ΔE 0.046
- Dusty Teal #4C9085 ΔE 0.050
- Teal Green #0A9396 ΔE 0.053
- Viridian #1E9167 ΔE 0.054
- Dark Aquamarine #017371 ΔE 0.057
Use #288478 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.