#00C4B5
Closest named color: Topaz (#13BBAF). oklch(73.8% 0.13 185.2), rgb(0, 196, 181).
Aa
Black text reads best on this color (9.56:1).
About this color
#00C4B5 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 74%, its chroma 0.130 and its hue 185°. Its hue sits on the cool side of the wheel. The nearest named color is Topaz (#13BBAF), ΔE 0.025 away. Black text reads best on it, at 9.56:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (74%) |
| Chroma | moderately saturated (0.130) |
| Temperature | cool |
| Nearest name | Topaz (#13BBAF) |
| Black text | 9.56:1 |
| White text | 2.19:1 |
Values
| HEX | #00C4B5 |
| RGB | rgb(0, 196, 181) |
| HSL | hsl(175, 100%, 38%) |
| OKLCH | oklch(73.8% 0.13 185.2) |
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 #00C4B5 | 2.19:1 | Fails | Lc -47.2 | Large or bold text, headings |
| Black text on #00C4B5 | 9.56:1 | AAA | Lc 61.4 | Content text, not long reading |
| #00C4B5 text on white | 2.19:1 | Fails | Lc 42.5 | Non-text elements, placeholder text |
| #00C4B5 text on black | 9.56:1 | AAA | Lc -59.7 | Large or bold text, headings |
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
#D9EFEC
oklch(93.5% 0.024 186.9)
-
Step 200
200
#B9E3DD
oklch(88.4% 0.044 185.8)
-
Step 300
300
#81D2C7
oklch(80.9% 0.081 184.8)
-
Step 400
400 (this color)
#00C4B5
oklch(73.8% 0.13 185.2)
-
Step 500
500
#009F92
oklch(63.2% 0.111 184.7)
-
Step 600
600
#00857B
oklch(55.5% 0.097 185.6)
-
Step 700
700
#007067
oklch(49% 0.086 185.2)
-
Step 800
800
#005C54
oklch(42.7% 0.075 184.7)
-
Step 900
900
#004D46
oklch(37.8% 0.067 184.5)
-
Step 950
950
#002E29
oklch(27.1% 0.048 183.6)
#00C4B5 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) | #B9B8B5 | 0.138 |
| Deuteranopia (no green cones) | #A4A8B7 | 0.131 |
| Tritanopia (no blue cones) | #00C9BF | 0.017 |
| Achromatopsia (no color) | #AFAFAF | 0.131 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #00C4B5
#00C4B5
oklch(73.8% 0.13 185.2)
- #EE859F
#EE859F
oklch(73.8% 0.131 4.9)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes and gradients that use #00C4B5
These curated palettes and gradients contain exactly #00C4B5. Open one to see the full color scheme around it.
Gradients
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Topaz #13BBAF ΔE 0.025
- Dark Turquoise #00CED1 ΔE 0.043
- Light Sea Green #20B2AA ΔE 0.050
- Medium Turquoise #48D1CC ΔE 0.053
- Greeny Blue #42B395 ΔE 0.054
- Green Blue #01C08D ΔE 0.055
- Medium Aquamarine #66CDAA ΔE 0.055
- Greenblue #23C48B ΔE 0.059
Use #00C4B5 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.