#5B709C
Closest named color: Dull Blue (#49759C). oklch(54.7% 0.074 264.5), rgb(91, 112, 156).
Aa
White text reads best on this color (4.94:1).
About this color
#5B709C is a medium-dark, moderately saturated blue. In OKLCH its lightness is 55%, its chroma 0.074 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Dull Blue (#49759C), ΔE 0.024 away. White text reads best on it, at 4.94:1.
| Hue family | Blues |
| Lightness | medium-dark (55%) |
| Chroma | moderately saturated (0.074) |
| Temperature | cool |
| Nearest name | Dull Blue (#49759C) |
| Black text | 4.24:1 |
| White text | 4.94:1 |
Values
| HEX | #5B709C |
| RGB | rgb(91, 112, 156) |
| HSL | hsl(221, 26%, 48%) |
| OKLCH | oklch(54.7% 0.074 264.5) |
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 #5B709C | 4.94:1 | AA | Lc -79.6 | Fine for body text |
| Black text on #5B709C | 4.24:1 | AA large text | Lc 29.9 | Dividers and decoration only |
| #5B709C text on white | 4.94:1 | AA | Lc 74.2 | Content text, not long reading |
| #5B709C text on black | 4.24:1 | AA large text | Lc -27.5 | 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
#F4F5F8
oklch(97% 0.004 271.4)
-
Step 100
100
#E7EAF0
oklch(93.6% 0.009 264.5)
-
Step 200
200
#D3D9E6
oklch(88.5% 0.019 266)
-
Step 300
300
#B6C1D7
oklch(80.9% 0.033 264.4)
-
Step 400
400
#90A1C2
oklch(70.7% 0.052 263.6)
-
Step 500
500
#7589B3
oklch(63% 0.068 264.8)
-
Step 600
600 (this color)
#5B709C
oklch(54.7% 0.074 264.5)
-
Step 700
700
#4D6088
oklch(49.1% 0.069 264.5)
-
Step 800
800
#3F4F6E
oklch(42.8% 0.056 263.2)
-
Step 900
900
#364159
oklch(37.6% 0.044 265.3)
-
Step 950
950
#202634
oklch(26.9% 0.028 266.5)
#5B709C 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) | #61739E | 0.013 |
| Deuteranopia (no green cones) | #5A6D9B | 0.009 |
| Tritanopia (no blue cones) | #45797F | 0.066 |
| Achromatopsia (no color) | #707070 | 0.074 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B709C
#5B709C
oklch(54.7% 0.074 264.5)
- #856D3C
#856D3C
oklch(54.7% 0.073 83.9)
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 #5B709C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Blue #49759C ΔE 0.024
- Metallic Blue #4F738E ΔE 0.031
- Stormy Blue #507B9C ΔE 0.033
- Muted Blue #3B719F ΔE 0.035
- Flat Blue #3C73A8 ΔE 0.036
- Cerulean #457B9D ΔE 0.037
- French Blue #436BAD ΔE 0.044
- Grey Blue #647D8E ΔE 0.052
Use #5B709C 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.