#5B6883
Closest named color: Slate (#516572). oklch(51.7% 0.046 264.7), rgb(91, 104, 131).
Aa
White text reads best on this color (5.59:1).
About this color
#5B6883 is a medium-dark, muted blue. In OKLCH its lightness is 52%, its chroma 0.046 and its hue 265°. Its hue sits on the cool side of the wheel. The nearest named color is Slate (#516572), ΔE 0.032 away. White text reads best on it, at 5.59:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | muted (0.046) |
| Temperature | cool |
| Nearest name | Slate (#516572) |
| Black text | 3.75:1 |
| White text | 5.59:1 |
Values
| HEX | #5B6883 |
| RGB | rgb(91, 104, 131) |
| HSL | hsl(220, 18%, 44%) |
| OKLCH | oklch(51.7% 0.046 264.7) |
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 #5B6883 | 5.59:1 | AA | Lc -83.3 | Fine for body text |
| Black text on #5B6883 | 3.75:1 | AA large text | Lc 26.1 | Dividers and decoration only |
| #5B6883 text on white | 5.59:1 | AA | Lc 78.0 | Fine for body text |
| #5B6883 text on black | 3.75:1 | AA large text | Lc -23.8 | 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 700.
-
Step 50
50
#F4F5F7
oklch(97% 0.003 264.5)
-
Step 100
100
#E8EAEE
oklch(93.7% 0.006 264.5)
-
Step 200
200
#D5D9E2
oklch(88.5% 0.013 266.7)
-
Step 300
300
#BAC1CF
oklch(81% 0.021 264.4)
-
Step 400
400
#96A1B7
oklch(70.8% 0.035 264.3)
-
Step 500
500
#7C8AA6
oklch(63.2% 0.045 264.2)
-
Step 600
600
#657391
oklch(55.5% 0.05 265.3)
-
Step 700
700 (this color)
#5B6883
oklch(51.7% 0.046 264.7)
-
Step 800
800
#454F64
oklch(42.7% 0.037 264.9)
-
Step 900
900
#3A4252
oklch(37.8% 0.029 264.1)
-
Step 950
950
#222630
oklch(26.9% 0.02 267.9)
#5B6883 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) | #5F6A84 | 0.009 |
| Deuteranopia (no green cones) | #5C6682 | 0.006 |
| Tritanopia (no blue cones) | #506D71 | 0.040 |
| Achromatopsia (no color) | #686868 | 0.046 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B6883
#5B6883
oklch(51.7% 0.046 264.7)
- #74664A
#74664A
oklch(51.6% 0.045 84.3)
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 #5B6883, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.032
- Metallic Blue #4F738E ΔE 0.033
- Dim Gray #696969 ΔE 0.046
- Denim #3B638C ΔE 0.047
- Dull Blue #49759C ΔE 0.048
- Battleship Gray #6C757D ΔE 0.051
- Dusky Blue #475F94 ΔE 0.052
- Dusty Grape #545775 ΔE 0.052
Use #5B6883 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.