#00C5B3
Closest named color: Topaz (#13BBAF). oklch(74% 0.131 183.4), rgb(0, 197, 179).
Aa
Black text reads best on this color (9.63:1).
About this color
#00C5B3 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 74%, its chroma 0.131 and its hue 183°. Its hue sits on the cool side of the wheel. The nearest named color is Topaz (#13BBAF), ΔE 0.028 away. Black text reads best on it, at 9.63:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (74%) |
| Chroma | moderately saturated (0.131) |
| Temperature | cool |
| Nearest name | Topaz (#13BBAF) |
| Black text | 9.63:1 |
| White text | 2.17:1 |
Values
| HEX | #00C5B3 |
| RGB | rgb(0, 197, 179) |
| HSL | hsl(175, 100%, 39%) |
| OKLCH | oklch(74% 0.131 183.4) |
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 #00C5B3 | 2.17:1 | Fails | Lc -46.9 | Large or bold text, headings |
| Black text on #00C5B3 | 9.63:1 | AAA | Lc 61.8 | Content text, not long reading |
| #00C5B3 text on white | 2.17:1 | Fails | Lc 42.2 | Non-text elements, placeholder text |
| #00C5B3 text on black | 9.63:1 | AAA | Lc -60.1 | 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
#D9EFEB
oklch(93.5% 0.024 183.7)
-
Step 200
200
#B9E4DC
oklch(88.6% 0.046 182.7)
-
Step 300
300
#81D2C6
oklch(80.8% 0.082 183.8)
-
Step 400
400 (this color)
#00C5B3
oklch(74% 0.131 183.4)
-
Step 500
500
#009F90
oklch(63.1% 0.112 183.2)
-
Step 600
600
#008679
oklch(55.7% 0.099 183.1)
-
Step 700
700
#007066
oklch(49% 0.087 184.2)
-
Step 800
800
#005C53
oklch(42.6% 0.076 183.4)
-
Step 900
900
#004D45
oklch(37.7% 0.067 183.1)
-
Step 950
950
#002E29
oklch(27.1% 0.048 183.6)
#00C5B3 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) | #BBB9B2 | 0.140 |
| Deuteranopia (no green cones) | #A5A9B5 | 0.132 |
| Tritanopia (no blue cones) | #00C9BF | 0.018 |
| Achromatopsia (no color) | #B0B0B0 | 0.133 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #00C5B3
#00C5B3
oklch(74% 0.131 183.4)
- #EE85A2
#EE85A2
oklch(73.8% 0.132 3.1)
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 #00C5B3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Topaz #13BBAF ΔE 0.028
- Dark Turquoise #00CED1 ΔE 0.044
- Green Blue #01C08D ΔE 0.052
- Medium Aquamarine #66CDAA ΔE 0.053
- Medium Turquoise #48D1CC ΔE 0.053
- Light Sea Green #20B2AA ΔE 0.053
- Greeny Blue #42B395 ΔE 0.055
- Greenblue #23C48B ΔE 0.055
Use #00C5B3 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.