#238FA5
Closest named color: Teal Blue (#01889F). oklch(60.2% 0.097 215.1), rgb(35, 143, 165).
Aa
Black text reads best on this color (5.54:1).
About this color
#238FA5 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 60%, its chroma 0.097 and its hue 215°. Its hue sits on the cool side of the wheel. The nearest named color is Teal Blue (#01889F), ΔE 0.025 away. Black text reads best on it, at 5.54:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (60%) |
| Chroma | moderately saturated (0.097) |
| Temperature | cool |
| Nearest name | Teal Blue (#01889F) |
| Black text | 5.54:1 |
| White text | 3.78:1 |
Values
| HEX | #238FA5 |
| RGB | rgb(35, 143, 165) |
| HSL | hsl(190, 65%, 39%) |
| OKLCH | oklch(60.2% 0.097 215.1) |
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 #238FA5 | 3.78:1 | AA large text | Lc -70.5 | Content text, not long reading |
| Black text on #238FA5 | 5.54:1 | AA | Lc 39.1 | Non-text elements, placeholder text |
| #238FA5 text on white | 3.78:1 | AA large text | Lc 65.0 | Content text, not long reading |
| #238FA5 text on black | 5.54:1 | AA | Lc -36.6 | 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
#F1F7F8
oklch(97.2% 0.007 208.8)
-
Step 100
100
#E0ECF0
oklch(93.5% 0.014 219.6)
-
Step 200
200
#C6DEE4
oklch(88.5% 0.027 214.4)
-
Step 300
300
#9EC9D4
oklch(80.9% 0.048 215.1)
-
Step 400
400
#65ADBE
oklch(70.7% 0.076 214.6)
-
Step 500
500 (this color)
#238FA5
oklch(60.2% 0.097 215.1)
-
Step 600
600
#008197
oklch(55.5% 0.098 215.2)
-
Step 700
700
#006D7F
oklch(49.2% 0.087 214.3)
-
Step 800
800
#005969
oklch(42.7% 0.076 215.4)
-
Step 900
900
#084A57
oklch(37.8% 0.064 215.4)
-
Step 950
950
#092B33
oklch(26.9% 0.041 216.6)
#238FA5 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) | #808AA6 | 0.087 |
| Deuteranopia (no green cones) | #6E7EA5 | 0.077 |
| Tritanopia (no blue cones) | #009796 | 0.039 |
| Achromatopsia (no color) | #838383 | 0.098 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #238FA5
#238FA5
oklch(60.2% 0.097 215.1)
- #B36A58
#B36A58
oklch(60.1% 0.098 34.7)
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 #238FA5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Teal Blue #01889F ΔE 0.025
- Blue NCS #118AB2 ΔE 0.029
- Teal Green #0A9396 ΔE 0.031
- Dark Cyan #008B8B ΔE 0.043
- Sea #3C9992 ΔE 0.050
- Dusty Blue #5A86AD ΔE 0.051
- Off Blue #5684AE ΔE 0.052
- Steel Blue #4682B4 ΔE 0.054
Use #238FA5 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.