#00909B
Closest named color: Teal Green (#0A9396). oklch(59.6% 0.102 204.3), rgb(0, 144, 155).
Aa
Black text reads best on this color (5.46:1).
About this color
#00909B is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 60%, its chroma 0.102 and its hue 204°. Its hue sits on the cool side of the wheel. The nearest named color is Teal Green (#0A9396), ΔE 0.014 away. Black text reads best on it, at 5.46:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (60%) |
| Chroma | moderately saturated (0.102) |
| Temperature | cool |
| Nearest name | Teal Green (#0A9396) |
| Black text | 5.46:1 |
| White text | 3.84:1 |
Values
| HEX | #00909B |
| RGB | rgb(0, 144, 155) |
| HSL | hsl(184, 100%, 30%) |
| OKLCH | oklch(59.6% 0.102 204.3) |
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 #00909B | 3.84:1 | AA large text | Lc -70.8 | Content text, not long reading |
| Black text on #00909B | 5.46:1 | AA | Lc 38.8 | Non-text elements, placeholder text |
| #00909B text on white | 3.84:1 | AA large text | Lc 65.3 | Content text, not long reading |
| #00909B text on black | 5.46:1 | AA | Lc -36.3 | 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
#F1F7F7
oklch(97.2% 0.006 197.1)
-
Step 100
100
#DFEDEE
oklch(93.6% 0.015 202)
-
Step 200
200
#C5DFE2
oklch(88.5% 0.028 205.1)
-
Step 300
300
#9BCACF
oklch(80.7% 0.05 204.3)
-
Step 400
400
#5FAFB8
oklch(70.7% 0.08 205)
-
Step 500
500 (this color)
#00909B
oklch(59.6% 0.102 204.3)
-
Step 600
600
#00838D
oklch(55.6% 0.095 204.2)
-
Step 700
700
#006E77
oklch(49.1% 0.084 204.7)
-
Step 800
800
#005A61
oklch(42.6% 0.073 204)
-
Step 900
900
#004B51
oklch(37.6% 0.064 204)
-
Step 950
950
#052C30
oklch(26.9% 0.042 205.1)
#00909B 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) | #83899C | 0.101 |
| Deuteranopia (no green cones) | #717C9B | 0.093 |
| Tritanopia (no blue cones) | #009793 | 0.028 |
| Achromatopsia (no color) | #828282 | 0.102 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #00909B
#00909B
oklch(59.6% 0.102 204.3)
- #B46561
#B46561
oklch(59.6% 0.102 23.7)
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 #00909B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Teal Green #0A9396 ΔE 0.014
- Dark Cyan #008B8B ΔE 0.026
- Teal Blue #01889F ΔE 0.027
- Sea #3C9992 ΔE 0.042
- Blue Green #0F9B8E ΔE 0.044
- Blue NCS #118AB2 ΔE 0.045
- Dusty Teal #4C9085 ΔE 0.045
- Persian Green #2A9D8F ΔE 0.051
Use #00909B 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.