#23A0B3
Closest named color: Cadet Blue (#5F9EA0). oklch(65% 0.105 210.6), rgb(35, 160, 179).
Aa
Black text reads best on this color (6.75:1).
About this color
#23A0B3 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 65%, its chroma 0.105 and its hue 211°. Its hue sits on the cool side of the wheel. The nearest named color is Cadet Blue (#5F9EA0), ΔE 0.045 away. Black text reads best on it, at 6.75:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (65%) |
| Chroma | moderately saturated (0.105) |
| Temperature | cool |
| Nearest name | Cadet Blue (#5F9EA0) |
| Black text | 6.75:1 |
| White text | 3.11:1 |
Values
| HEX | #23A0B3 |
| RGB | rgb(35, 160, 179) |
| HSL | hsl(188, 67%, 42%) |
| OKLCH | oklch(65% 0.105 210.6) |
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 #23A0B3 | 3.11:1 | AA large text | Lc -63.1 | Content text, not long reading |
| Black text on #23A0B3 | 6.75:1 | AA | Lc 46.4 | Large or bold text, headings |
| #23A0B3 text on white | 3.11:1 | AA large text | Lc 57.7 | Large or bold text, headings |
| #23A0B3 text on black | 6.75:1 | AA | Lc -44.1 | 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
#F0F7F8
oklch(97.1% 0.008 207.1)
-
Step 100
100
#DFEDEF
oklch(93.6% 0.015 207.1)
-
Step 200
200
#C5DFE4
oklch(88.6% 0.028 210.5)
-
Step 300
300
#9ACAD3
oklch(80.8% 0.052 210.3)
-
Step 400
400
#5DAFBD
oklch(70.8% 0.082 209.9)
-
Step 500
500 (this color)
#23A0B3
oklch(65% 0.105 210.6)
-
Step 600
600
#008293
oklch(55.6% 0.096 210.7)
-
Step 700
700
#006D7C
oklch(49% 0.085 211.2)
-
Step 800
800
#005966
oklch(42.6% 0.074 211.8)
-
Step 900
900
#004B55
oklch(37.8% 0.065 210)
-
Step 950
950
#042C32
oklch(27% 0.044 209.8)
#23A0B3 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) | #909AB4 | 0.098 |
| Deuteranopia (no green cones) | #7D8CB3 | 0.089 |
| Tritanopia (no blue cones) | #00A8A6 | 0.036 |
| Achromatopsia (no color) | #929292 | 0.106 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #23A0B3
#23A0B3
oklch(65% 0.105 210.6)
- #C77668
#C77668
oklch(65.1% 0.105 30.6)
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 #23A0B3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cadet Blue #5F9EA0 ΔE 0.045
- Sea #3C9992 ΔE 0.048
- Turquoise Blue #06B1C4 ΔE 0.048
- Persian Green #2A9D8F ΔE 0.053
- Teal Green #0A9396 ΔE 0.053
- Blue Green #0F9B8E ΔE 0.056
- Light Sea Green #20B2AA ΔE 0.059
- Dull Teal #5F9E8F ΔE 0.061
Use #23A0B3 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.