#238EC6
Closest named color: Water Blue (#0E87CC). oklch(61.5% 0.125 237.7), rgb(35, 142, 198).
Aa
Black text reads best on this color (5.75:1).
About this color
#238EC6 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 61%, its chroma 0.125 and its hue 238°. Its hue sits on the cool side of the wheel. The nearest named color is Water Blue (#0E87CC), ΔE 0.026 away. Black text reads best on it, at 5.75:1.
| Hue family | Blues |
| Lightness | medium-dark (61%) |
| Chroma | moderately saturated (0.125) |
| Temperature | cool |
| Nearest name | Water Blue (#0E87CC) |
| Black text | 5.75:1 |
| White text | 3.64:1 |
Values
| HEX | #238EC6 |
| RGB | rgb(35, 142, 198) |
| HSL | hsl(201, 70%, 46%) |
| OKLCH | oklch(61.5% 0.125 237.7) |
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 #238EC6 | 3.64:1 | AA large text | Lc -69.1 | Content text, not long reading |
| Black text on #238EC6 | 5.75:1 | AA | Lc 40.4 | Non-text elements, placeholder text |
| #238EC6 text on white | 3.64:1 | AA large text | Lc 63.6 | Content text, not long reading |
| #238EC6 text on black | 5.75:1 | AA | Lc -38.0 | 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
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#E0ECF4
oklch(93.6% 0.017 236.7)
-
Step 200
200
#C5DDED
oklch(88.5% 0.034 237)
-
Step 300
300
#9CC7E4
oklch(80.9% 0.061 238)
-
Step 400
400
#62A9D6
oklch(70.6% 0.097 238.1)
-
Step 500
500 (this color)
#238EC6
oklch(61.5% 0.125 237.7)
-
Step 600
600
#007CB2
oklch(55.6% 0.123 237.7)
-
Step 700
700
#006896
oklch(49.1% 0.108 237.6)
-
Step 800
800
#00557C
oklch(42.7% 0.094 237.9)
-
Step 900
900
#044767
oklch(37.8% 0.081 237.4)
-
Step 950
950
#082A3C
oklch(27.1% 0.051 236.4)
#238EC6 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) | #738EC9 | 0.069 |
| Deuteranopia (no green cones) | #5D7FC5 | 0.056 |
| Tritanopia (no blue cones) | #009CA1 | 0.080 |
| Achromatopsia (no color) | #868686 | 0.125 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #238EC6
#238EC6
oklch(61.5% 0.125 237.7)
- #BB6F2D
#BB6F2D
oklch(61.4% 0.124 57.8)
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 #238EC6, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Water Blue #0E87CC ΔE 0.026
- Blue NCS #118AB2 ΔE 0.033
- Cool Blue #4984B8 ΔE 0.035
- Steel Blue #4682B4 ΔE 0.040
- Off Blue #5684AE ΔE 0.049
- Dusty Blue #5A86AD ΔE 0.051
- Faded Blue #658CBB ΔE 0.052
- Dark Sky Blue #448EE4 ΔE 0.052
Use #238EC6 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.