#5C5FB8
Closest named color: Iris (#6258C4). oklch(52.7% 0.137 279.1), rgb(92, 95, 184).
Aa
White text reads best on this color (5.54:1).
About this color
#5C5FB8 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 53%, its chroma 0.137 and its hue 279°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.028 away. White text reads best on it, at 5.54:1.
| Hue family | Blues |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.137) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.78:1 |
| White text | 5.54:1 |
Values
| HEX | #5C5FB8 |
| RGB | rgb(92, 95, 184) |
| HSL | hsl(238, 39%, 54%) |
| OKLCH | oklch(52.7% 0.137 279.1) |
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 #5C5FB8 | 5.54:1 | AA | Lc -82.8 | Fine for body text |
| Black text on #5C5FB8 | 3.78:1 | AA large text | Lc 26.5 | Dividers and decoration only |
| #5C5FB8 text on white | 5.54:1 | AA | Lc 77.5 | Fine for body text |
| #5C5FB8 text on black | 3.78:1 | AA large text | Lc -24.2 | 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
#F4F5FB
oklch(97.1% 0.008 278.6)
-
Step 100
100
#E7E9F6
oklch(93.6% 0.018 279.1)
-
Step 200
200
#D4D7F0
oklch(88.5% 0.034 280.2)
-
Step 300
300
#B7BDE9
oklch(80.8% 0.062 278.8)
-
Step 400
400
#939ADE
oklch(70.7% 0.1 279)
-
Step 500
500
#7A80D4
oklch(63.2% 0.126 279.1)
-
Step 600
600 (this color)
#5C5FB8
oklch(52.7% 0.137 279.1)
-
Step 700
700
#5356A7
oklch(49.2% 0.127 279)
-
Step 800
800
#444687
oklch(42.6% 0.106 279.6)
-
Step 900
900
#393C6C
oklch(37.8% 0.081 279)
-
Step 950
950
#21233F
oklch(26.9% 0.052 279.2)
#5C5FB8 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) | #376CBB | 0.050 |
| Deuteranopia (no green cones) | #2F65B6 | 0.052 |
| Tritanopia (no blue cones) | #387283 | 0.119 |
| Achromatopsia (no color) | #686868 | 0.138 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5C5FB8
#5C5FB8
oklch(52.7% 0.137 279.1)
- #7B6B00
#7B6B00
oklch(52.7% 0.109 98.9)
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 #5C5FB8, closest first.
No curated palette has a color within ΔE 0.04 of #5C5FB8.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.028
- Slate Blue #6A5ACD ΔE 0.041
- Dark Periwinkle #665FD1 ΔE 0.042
- Light Indigo #6D5ACF ΔE 0.046
- French Blue #436BAD ΔE 0.048
- Mid Blue #276AB3 ΔE 0.061
- Warm Blue #4B57DB ΔE 0.064
- Dusky Blue #475F94 ΔE 0.066
Use #5C5FB8 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.