#00A4A8
Closest named color: Persian Green (#2A9D8F). oklch(65.2% 0.111 197.9), rgb(0, 164, 168).
Aa
Black text reads best on this color (6.87:1).
About this color
#00A4A8 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 65%, its chroma 0.111 and its hue 198°. Its hue sits on the cool side of the wheel. The nearest named color is Persian Green (#2A9D8F), ΔE 0.036 away. Black text reads best on it, at 6.87:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (65%) |
| Chroma | moderately saturated (0.111) |
| Temperature | cool |
| Nearest name | Persian Green (#2A9D8F) |
| Black text | 6.87:1 |
| White text | 3.05:1 |
Values
| HEX | #00A4A8 |
| RGB | rgb(0, 164, 168) |
| HSL | hsl(181, 100%, 33%) |
| OKLCH | oklch(65.2% 0.111 197.9) |
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 #00A4A8 | 3.05:1 | AA large text | Lc -62.1 | Content text, not long reading |
| Black text on #00A4A8 | 6.87:1 | AA | Lc 47.3 | Large or bold text, headings |
| #00A4A8 text on white | 3.05:1 | AA large text | Lc 56.7 | Large or bold text, headings |
| #00A4A8 text on black | 6.87:1 | AA | Lc -45.0 | 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 500.
-
Step 50
50
#F0F7F7
oklch(97.1% 0.007 197)
-
Step 100
100
#DFEDED
oklch(93.6% 0.015 196.9)
-
Step 200
200
#C3E0E0
oklch(88.6% 0.031 196.6)
-
Step 300
300
#98CCCD
oklch(80.9% 0.054 197.6)
-
Step 400
400
#56B1B4
oklch(70.6% 0.087 198.3)
-
Step 500
500 (this color)
#00A4A8
oklch(65.2% 0.111 197.9)
-
Step 600
600
#008487
oklch(55.6% 0.095 197.6)
-
Step 700
700
#006F72
oklch(49.2% 0.084 198.1)
-
Step 800
800
#005B5D
oklch(42.7% 0.073 197.4)
-
Step 900
900
#004C4E
oklch(37.8% 0.064 197.8)
-
Step 950
950
#002D2E
oklch(27% 0.046 197.1)
#00A4A8 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) | #979CA8 | 0.113 |
| Deuteranopia (no green cones) | #848DA9 | 0.107 |
| Tritanopia (no blue cones) | #00AAA5 | 0.020 |
| Achromatopsia (no color) | #939393 | 0.111 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #00A4A8
#00A4A8
oklch(65.2% 0.111 197.9)
- #CA7276
#CA7276
oklch(65.1% 0.111 17.7)
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 #00A4A8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Persian Green #2A9D8F ΔE 0.036
- Sea #3C9992 ΔE 0.039
- Blue Green #0F9B8E ΔE 0.041
- Light Sea Green #20B2AA ΔE 0.043
- Cadet Blue #5F9EA0 ΔE 0.046
- Turquoise Blue #06B1C4 ΔE 0.049
- Teal Green #0A9396 ΔE 0.051
- Dull Teal #5F9E8F ΔE 0.052
Use #00A4A8 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.