#237B97
Closest named color: Ocean (#017B92). oklch(54.5% 0.091 223.9), rgb(35, 123, 151).
Aa
White text reads best on this color (4.82:1).
About this color
#237B97 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 54%, its chroma 0.091 and its hue 224°. Its hue sits on the cool side of the wheel. The nearest named color is Ocean (#017B92), ΔE 0.014 away. White text reads best on it, at 4.82:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.091) |
| Temperature | cool |
| Nearest name | Ocean (#017B92) |
| Black text | 4.35:1 |
| White text | 4.82:1 |
Values
| HEX | #237B97 |
| RGB | rgb(35, 123, 151) |
| HSL | hsl(194, 62%, 36%) |
| OKLCH | oklch(54.5% 0.091 223.9) |
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 #237B97 | 4.82:1 | AA | Lc -78.6 | Fine for body text |
| Black text on #237B97 | 4.35:1 | AA large text | Lc 30.9 | Non-text elements, placeholder text |
| #237B97 text on white | 4.82:1 | AA | Lc 73.1 | Content text, not long reading |
| #237B97 text on black | 4.35:1 | AA large text | Lc -28.6 | Dividers and decoration only |
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
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E2ECF0
oklch(93.7% 0.012 223.5)
-
Step 200
200
#CADDE4
oklch(88.5% 0.023 221.8)
-
Step 300
300
#A5C7D4
oklch(80.9% 0.041 223)
-
Step 400
400
#73AABF
oklch(70.7% 0.065 223.9)
-
Step 500
500
#4A94AF
oklch(63% 0.084 224.5)
-
Step 600
600 (this color)
#237B97
oklch(54.5% 0.091 223.9)
-
Step 700
700
#186B84
oklch(49.2% 0.084 223.4)
-
Step 800
800
#18576B
oklch(42.7% 0.07 223.5)
-
Step 900
900
#1C4857
oklch(37.8% 0.054 223.5)
-
Step 950
950
#122A33
oklch(27% 0.034 224.8)
#237B97 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) | #6B7898 | 0.070 |
| Deuteranopia (no green cones) | #5C6D97 | 0.062 |
| Tritanopia (no blue cones) | #008384 | 0.046 |
| Achromatopsia (no color) | #727272 | 0.091 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #237B97
#237B97
oklch(54.5% 0.091 223.9)
- #9C5E43
#9C5E43
oklch(54.5% 0.091 44)
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 #237B97, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Ocean #017B92 ΔE 0.014
- Sea Blue #047495 ΔE 0.026
- Cerulean #457B9D ΔE 0.028
- Dull Blue #49759C ΔE 0.035
- Ocean Blue #03719C ΔE 0.037
- Teal Blue #01889F ΔE 0.037
- Muted Blue #3B719F ΔE 0.038
- Stormy Blue #507B9C ΔE 0.039
Use #237B97 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.