#288083
Closest named color: Teal (#008080). oklch(55% 0.081 198.4), rgb(40, 128, 131).
Aa
White text reads best on this color (4.66:1).
About this color
#288083 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 55%, its chroma 0.081 and its hue 198°. Its hue sits on the cool side of the wheel. The nearest named color is Teal (#008080), ΔE 0.015 away. White text reads best on it, at 4.66:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (55%) |
| Chroma | moderately saturated (0.081) |
| Temperature | cool |
| Nearest name | Teal (#008080) |
| Black text | 4.50:1 |
| White text | 4.66:1 |
Values
| HEX | #288083 |
| RGB | rgb(40, 128, 131) |
| HSL | hsl(182, 53%, 34%) |
| OKLCH | oklch(55% 0.081 198.4) |
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 #288083 | 4.66:1 | AA | Lc -77.5 | Fine for body text |
| Black text on #288083 | 4.50:1 | AA | Lc 32.0 | Non-text elements, placeholder text |
| #288083 text on white | 4.66:1 | AA | Lc 72.1 | Content text, not long reading |
| #288083 text on black | 4.50:1 | AA | Lc -29.6 | Dividers and decoration only |
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
#E2ECEC
oklch(93.6% 0.011 197)
-
Step 200
200
#CBDDDE
oklch(88.4% 0.019 200.8)
-
Step 300
300
#A6C8C9
oklch(80.8% 0.036 198.7)
-
Step 400
400
#74ACAE
oklch(70.6% 0.059 198.7)
-
Step 500
500
#4C979A
oklch(63% 0.075 198.9)
-
Step 600
600 (this color)
#288083
oklch(55% 0.081 198.4)
-
Step 700
700
#1B6E70
oklch(49.2% 0.076 197.4)
-
Step 800
800
#1A595B
oklch(42.6% 0.062 198.1)
-
Step 900
900
#1D494B
oklch(37.6% 0.048 199.4)
-
Step 950
950
#122B2C
oklch(27% 0.031 198.9)
#288083 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) | #777A83 | 0.083 |
| Deuteranopia (no green cones) | #697084 | 0.077 |
| Tritanopia (no blue cones) | #008581 | 0.020 |
| Achromatopsia (no color) | #747474 | 0.081 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #288083
#288083
oklch(55% 0.081 198.4)
- #9B5E5F
#9B5E5F
oklch(55% 0.08 18.9)
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 #288083, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Teal #008080 ΔE 0.015
- Bluegreen #017A79 ΔE 0.028
- Deep Aqua #08787F ΔE 0.030
- Dark Cyan #008B8B ΔE 0.032
- Ocean #017B92 ΔE 0.035
- Teal Blue #01889F ΔE 0.043
- Deep Turquoise #017374 ΔE 0.047
- Dark Aquamarine #017371 ΔE 0.049
Use #288083 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.