#228FC4
Closest named color: Water Blue (#0E87CC). oklch(61.6% 0.122 235.9), rgb(34, 143, 196).
Aa
Black text reads best on this color (5.79:1).
About this color
#228FC4 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 62%, its chroma 0.122 and its hue 236°. Its hue sits on the cool side of the wheel. The nearest named color is Water Blue (#0E87CC), ΔE 0.030 away. Black text reads best on it, at 5.79:1.
| Hue family | Blues |
| Lightness | medium-dark (62%) |
| Chroma | moderately saturated (0.122) |
| Temperature | cool |
| Nearest name | Water Blue (#0E87CC) |
| Black text | 5.79:1 |
| White text | 3.62:1 |
Values
| HEX | #228FC4 |
| RGB | rgb(34, 143, 196) |
| HSL | hsl(200, 70%, 45%) |
| OKLCH | oklch(61.6% 0.122 235.9) |
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 #228FC4 | 3.62:1 | AA large text | Lc -68.9 | Content text, not long reading |
| Black text on #228FC4 | 5.79:1 | AA | Lc 40.7 | Non-text elements, placeholder text |
| #228FC4 text on white | 3.62:1 | AA large text | Lc 63.4 | Content text, not long reading |
| #228FC4 text on black | 5.79:1 | AA | Lc -38.3 | 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 500.
-
Step 50
50
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#DFECF4
oklch(93.6% 0.018 234.5)
-
Step 200
200
#C5DDEC
oklch(88.4% 0.033 235.2)
-
Step 300
300
#9CC7E2
oklch(80.8% 0.059 236)
-
Step 400
400
#61AAD4
oklch(70.7% 0.096 235.5)
-
Step 500
500 (this color)
#228FC4
oklch(61.6% 0.122 235.9)
-
Step 600
600
#007DAF
oklch(55.7% 0.119 235.4)
-
Step 700
700
#006994
oklch(49.2% 0.105 235.5)
-
Step 800
800
#00567A
oklch(42.8% 0.091 235.4)
-
Step 900
900
#034766
oklch(37.7% 0.08 236.3)
-
Step 950
950
#082A3C
oklch(27.1% 0.051 236.4)
#228FC4 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) | #758EC6 | 0.071 |
| Deuteranopia (no green cones) | #6080C3 | 0.059 |
| Tritanopia (no blue cones) | #009DA1 | 0.078 |
| Achromatopsia (no color) | #868686 | 0.122 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #228FC4
#228FC4
oklch(61.6% 0.122 235.9)
- #BC6F33
#BC6F33
oklch(61.6% 0.122 55.6)
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 #228FC4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Water Blue #0E87CC ΔE 0.030
- Blue NCS #118AB2 ΔE 0.030
- Cool Blue #4984B8 ΔE 0.036
- Steel Blue #4682B4 ΔE 0.041
- Off Blue #5684AE ΔE 0.048
- Dusty Blue #5A86AD ΔE 0.050
- Faded Blue #658CBB ΔE 0.052
- Dark Sky Blue #448EE4 ΔE 0.056
Use #228FC4 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.