#288377
Closest named color: Teal (#008080). oklch(55.4% 0.086 182.6), rgb(40, 131, 119).
Aa
Black text reads best on this color (4.60:1).
About this color
#288377 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 55%, its chroma 0.086 and its hue 183°. Its hue sits on the cool side of the wheel. The nearest named color is Teal (#008080), ΔE 0.023 away. Black text reads best on it, at 4.60:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (55%) |
| Chroma | moderately saturated (0.086) |
| Temperature | cool |
| Nearest name | Teal (#008080) |
| Black text | 4.60:1 |
| White text | 4.56:1 |
Values
| HEX | #288377 |
| RGB | rgb(40, 131, 119) |
| HSL | hsl(172, 53%, 34%) |
| OKLCH | oklch(55.4% 0.086 182.6) |
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 #288377 | 4.56:1 | AA | Lc -76.8 | Fine for body text |
| Black text on #288377 | 4.60:1 | AA | Lc 32.7 | Non-text elements, placeholder text |
| #288377 text on white | 4.56:1 | AA | Lc 71.4 | Content text, not long reading |
| #288377 text on black | 4.60:1 | AA | Lc -30.3 | 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
#CBDEDA
oklch(88.5% 0.021 181.8)
-
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
#4C998D
oklch(63% 0.079 182.3)
-
Step 600
600 (this color)
#288377
oklch(55.4% 0.086 182.6)
-
Step 700
700
#196F65
oklch(49% 0.08 183.4)
-
Step 800
800
#195B52
oklch(42.8% 0.067 182.2)
-
Step 900
900
#1D4B44
oklch(37.9% 0.052 182)
-
Step 950
950
#122C28
oklch(27.1% 0.033 182.6)
#288377 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) | #7D7B77 | 0.092 |
| Deuteranopia (no green cones) | #707278 | 0.086 |
| Tritanopia (no blue cones) | #00867F | 0.015 |
| Achromatopsia (no color) | #767676 | 0.087 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #288377
#288377
oklch(55.4% 0.086 182.6)
- #9C5D6E
#9C5D6E
oklch(55.4% 0.085 2.8)
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 #288377, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Teal #008080 ΔE 0.023
- Dark Cyan #008B8B ΔE 0.032
- Bluegreen #017A79 ΔE 0.034
- Deep Aqua #08787F ΔE 0.043
- Dusty Teal #4C9085 ΔE 0.053
- Dark Aquamarine #017371 ΔE 0.054
- Deep Turquoise #017374 ΔE 0.054
- Teal Green #0A9396 ΔE 0.056
Use #288377 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.