#25CBB4
Closest named color: Medium Aquamarine (#66CDAA). oklch(75.8% 0.131 180.3), rgb(37, 203, 180).
Aa
Black text reads best on this color (10.28:1).
About this color
#25CBB4 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 76%, its chroma 0.131 and its hue 180°. Its hue sits on the cool side of the wheel. The nearest named color is Medium Aquamarine (#66CDAA), ΔE 0.037 away. Black text reads best on it, at 10.28:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (76%) |
| Chroma | moderately saturated (0.131) |
| Temperature | cool |
| Nearest name | Medium Aquamarine (#66CDAA) |
| Black text | 10.28:1 |
| White text | 2.04:1 |
Values
| HEX | #25CBB4 |
| RGB | rgb(37, 203, 180) |
| HSL | hsl(172, 69%, 47%) |
| OKLCH | oklch(75.8% 0.131 180.3) |
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 #25CBB4 | 2.04:1 | Fails | Lc -43.7 | Non-text elements, placeholder text |
| Black text on #25CBB4 | 10.28:1 | AAA | Lc 64.7 | Content text, not long reading |
| #25CBB4 text on white | 2.04:1 | Fails | Lc 39.3 | Non-text elements, placeholder text |
| #25CBB4 text on black | 10.28:1 | AAA | Lc -63.1 | Content text, not long reading |
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 400.
-
Step 50
50
#EEF8F6
oklch(97.1% 0.011 182.9)
-
Step 100
100
#DAEFEA
oklch(93.5% 0.023 179.9)
-
Step 200
200
#BAE4DA
oklch(88.6% 0.046 179.1)
-
Step 300
300
#83D2C3
oklch(80.8% 0.081 180.7)
-
Step 400
400 (this color)
#25CBB4
oklch(75.8% 0.131 180.3)
-
Step 500
500
#009F8C
oklch(63% 0.114 180.3)
-
Step 600
600
#008676
oklch(55.6% 0.1 180.5)
-
Step 700
700
#007163
oklch(49.2% 0.089 180.3)
-
Step 800
800
#005C51
oklch(42.6% 0.077 181.1)
-
Step 900
900
#004D43
oklch(37.7% 0.068 180.3)
-
Step 950
950
#002E27
oklch(27% 0.049 179.5)
#25CBB4 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) | #C2BEB3 | 0.139 |
| Deuteranopia (no green cones) | #ADAFB6 | 0.132 |
| Tritanopia (no blue cones) | #00CFC4 | 0.022 |
| Achromatopsia (no color) | #B5B5B5 | 0.132 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #25CBB4
#25CBB4
oklch(75.8% 0.131 180.3)
- #F38BAC
#F38BAC
oklch(75.7% 0.131 0.4)
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 #25CBB4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Aquamarine #66CDAA ΔE 0.037
- Dark Turquoise #00CED1 ΔE 0.040
- Medium Turquoise #48D1CC ΔE 0.041
- Topaz #13BBAF ΔE 0.047
- Emerald #06D6A0 ΔE 0.049
- Seafoam Blue #78D1B6 ΔE 0.056
- Greenblue #23C48B ΔE 0.056
- Green Blue #01C08D ΔE 0.058
Use #25CBB4 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.