#04A59B
Closest named color: Persian Green (#2A9D8F). oklch(65% 0.113 187.2), rgb(4, 165, 155).
Aa
Black text reads best on this color (6.86:1).
About this color
#04A59B is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 65%, its chroma 0.113 and its hue 187°. Its hue sits on the cool side of the wheel. The nearest named color is Persian Green (#2A9D8F), ΔE 0.024 away. Black text reads best on it, at 6.86:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (65%) |
| Chroma | moderately saturated (0.113) |
| Temperature | cool |
| Nearest name | Persian Green (#2A9D8F) |
| Black text | 6.86:1 |
| White text | 3.06:1 |
Values
| HEX | #04A59B |
| RGB | rgb(4, 165, 155) |
| HSL | hsl(176, 95%, 33%) |
| OKLCH | oklch(65% 0.113 187.2) |
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 #04A59B | 3.06:1 | AA large text | Lc -62.2 | Content text, not long reading |
| Black text on #04A59B | 6.86:1 | AA | Lc 47.2 | Large or bold text, headings |
| #04A59B text on white | 3.06:1 | AA large text | Lc 56.9 | Large or bold text, headings |
| #04A59B text on black | 6.86:1 | AA | Lc -44.9 | Non-text elements, placeholder text |
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
#F0F7F6
oklch(97.1% 0.008 186.9)
-
Step 100
100
#DFEEEC
oklch(93.7% 0.016 187.3)
-
Step 200
200
#C3E0DC
oklch(88.4% 0.031 186.5)
-
Step 300
300
#98CDC7
oklch(81% 0.056 187.5)
-
Step 400
400
#57B3AA
oklch(70.8% 0.089 186.9)
-
Step 500
500 (this color)
#04A59B
oklch(65% 0.113 187.2)
-
Step 600
600
#00857D
oklch(55.5% 0.097 187.4)
-
Step 700
700
#007069
oklch(49.1% 0.086 187.3)
-
Step 800
800
#005C56
oklch(42.8% 0.075 187.1)
-
Step 900
900
#004D47
oklch(37.8% 0.066 185.9)
-
Step 950
950
#012E2A
oklch(27.1% 0.047 185.7)
#04A59B 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) | #9B9B9B | 0.120 |
| Deuteranopia (no green cones) | #898E9C | 0.112 |
| Tritanopia (no blue cones) | #00A9A2 | 0.013 |
| Achromatopsia (no color) | #939393 | 0.114 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #04A59B
#04A59B
oklch(65% 0.113 187.2)
- #C97083
#C97083
oklch(65% 0.114 7.1)
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 #04A59B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Persian Green #2A9D8F ΔE 0.024
- Blue Green #0F9B8E ΔE 0.031
- Sea #3C9992 ΔE 0.035
- Light Sea Green #20B2AA ΔE 0.041
- Dull Teal #5F9E8F ΔE 0.046
- Grey Teal #5E9B8A ΔE 0.049
- Cadet Blue #5F9EA0 ΔE 0.051
- Greeny Blue #42B395 ΔE 0.053
Use #04A59B 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.