#5B76AF
Closest named color: Steel Blue (#4682B4). oklch(56.9% 0.094 264.3), rgb(91, 118, 175).
Aa
Black text reads best on this color (4.65:1).
About this color
#5B76AF is a medium-dark, moderately saturated blue. In OKLCH its lightness is 57%, its chroma 0.094 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Steel Blue (#4682B4), ΔE 0.037 away. Black text reads best on it, at 4.65:1.
| Hue family | Blues |
| Lightness | medium-dark (57%) |
| Chroma | moderately saturated (0.094) |
| Temperature | cool |
| Nearest name | Steel Blue (#4682B4) |
| Black text | 4.65:1 |
| White text | 4.51:1 |
Values
| HEX | #5B76AF |
| RGB | rgb(91, 118, 175) |
| HSL | hsl(221, 34%, 52%) |
| OKLCH | oklch(56.9% 0.094 264.3) |
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 #5B76AF | 4.51:1 | AA | Lc -76.7 | Fine for body text |
| Black text on #5B76AF | 4.65:1 | AA | Lc 32.8 | Non-text elements, placeholder text |
| #5B76AF text on white | 4.51:1 | AA | Lc 71.2 | Content text, not long reading |
| #5B76AF text on black | 4.65:1 | AA | Lc -30.4 | 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 600.
-
Step 50
50
#F3F5F9
oklch(97% 0.006 264.5)
-
Step 100
100
#E6EAF2
oklch(93.6% 0.012 264.5)
-
Step 200
200
#D1D9E9
oklch(88.4% 0.024 264.4)
-
Step 300
300
#B3C1DD
oklch(80.9% 0.043 264.3)
-
Step 400
400
#8BA1CC
oklch(70.8% 0.068 263.6)
-
Step 500
500
#6F89BE
oklch(63.1% 0.086 264)
-
Step 600
600 (this color)
#5B76AF
oklch(56.9% 0.094 264.3)
-
Step 700
700
#475F93
oklch(49% 0.089 264.5)
-
Step 800
800
#3B4E77
oklch(42.7% 0.073 264.6)
-
Step 900
900
#324160
oklch(37.7% 0.057 264.1)
-
Step 950
950
#1E2638
oklch(27% 0.036 265.6)
#5B76AF 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) | #617BB1 | 0.017 |
| Deuteranopia (no green cones) | #5873AE | 0.010 |
| Tritanopia (no blue cones) | #39828A | 0.085 |
| Achromatopsia (no color) | #767676 | 0.094 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B76AF
#5B76AF
oklch(56.9% 0.094 264.3)
- #91722E
#91722E
oklch(56.9% 0.094 84.2)
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 #5B76AF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Steel Blue #4682B4 ΔE 0.037
- Flat Blue #3C73A8 ΔE 0.038
- Dull Blue #49759C ΔE 0.038
- Stormy Blue #507B9C ΔE 0.039
- Cool Blue #4984B8 ΔE 0.040
- Off Blue #5684AE ΔE 0.040
- Windows Blue #3778BF ΔE 0.041
- Cerulean #457B9D ΔE 0.043
Use #5B76AF 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.