#238A9B
Closest named color: Teal Blue (#01889F). oklch(58.5% 0.092 211.4), rgb(35, 138, 155).
Aa
Black text reads best on this color (5.18:1).
About this color
#238A9B is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 58%, its chroma 0.092 and its hue 211°. Its hue sits on the cool side of the wheel. The nearest named color is Teal Blue (#01889F), ΔE 0.014 away. Black text reads best on it, at 5.18:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.092) |
| Temperature | cool |
| Nearest name | Teal Blue (#01889F) |
| Black text | 5.18:1 |
| White text | 4.05:1 |
Values
| HEX | #238A9B |
| RGB | rgb(35, 138, 155) |
| HSL | hsl(189, 63%, 37%) |
| OKLCH | oklch(58.5% 0.092 211.4) |
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 #238A9B | 4.05:1 | AA large text | Lc -72.9 | Content text, not long reading |
| Black text on #238A9B | 5.18:1 | AA | Lc 36.7 | Non-text elements, placeholder text |
| #238A9B text on white | 4.05:1 | AA large text | Lc 67.4 | Content text, not long reading |
| #238A9B text on black | 5.18:1 | AA | Lc -34.3 | 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 600.
-
Step 50
50
#F1F6F7
oklch(97% 0.005 211)
-
Step 100
100
#E1ECEE
oklch(93.5% 0.012 209.8)
-
Step 200
200
#C9DEE2
oklch(88.6% 0.023 210.4)
-
Step 300
300
#A3C8D0
oklch(80.9% 0.041 212.3)
-
Step 400
400
#6EACB8
oklch(70.7% 0.066 211.1)
-
Step 500
500
#4197A7
oklch(63% 0.085 211.7)
-
Step 600
600 (this color)
#238A9B
oklch(58.5% 0.092 211.4)
-
Step 700
700
#006D7C
oklch(49% 0.085 211.2)
-
Step 800
800
#0A5965
oklch(42.7% 0.071 211.2)
-
Step 900
900
#154952
oklch(37.6% 0.055 211.3)
-
Step 950
950
#0F2B30
oklch(27% 0.035 210.9)
#238A9B 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) | #7C859C | 0.085 |
| Deuteranopia (no green cones) | #6C799B | 0.078 |
| Tritanopia (no blue cones) | #00918F | 0.034 |
| Achromatopsia (no color) | #7E7E7E | 0.093 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #238A9B
#238A9B
oklch(58.5% 0.092 211.4)
- #AC6659
#AC6659
oklch(58.5% 0.093 31.3)
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 #238A9B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Teal Blue #01889F ΔE 0.014
- Dark Cyan #008B8B ΔE 0.029
- Teal Green #0A9396 ΔE 0.031
- Blue NCS #118AB2 ΔE 0.036
- Ocean #017B92 ΔE 0.048
- Cerulean #457B9D ΔE 0.048
- Teal #008080 ΔE 0.049
- Dusty Teal #4C9085 ΔE 0.050
Use #238A9B 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.