#5B709F
Closest named color: Dull Blue (#49759C). oklch(54.8% 0.078 265.4), rgb(91, 112, 159).
Aa
White text reads best on this color (4.92:1).
About this color
#5B709F is a medium-dark, moderately saturated blue. In OKLCH its lightness is 55%, its chroma 0.078 and its hue 265°. Its hue sits on the cool side of the wheel. The nearest named color is Dull Blue (#49759C), ΔE 0.026 away. White text reads best on it, at 4.92:1.
| Hue family | Blues |
| Lightness | medium-dark (55%) |
| Chroma | moderately saturated (0.078) |
| Temperature | cool |
| Nearest name | Dull Blue (#49759C) |
| Black text | 4.26:1 |
| White text | 4.92:1 |
Values
| HEX | #5B709F |
| RGB | rgb(91, 112, 159) |
| HSL | hsl(221, 27%, 49%) |
| OKLCH | oklch(54.8% 0.078 265.4) |
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 #5B709F | 4.92:1 | AA | Lc -79.5 | Fine for body text |
| Black text on #5B709F | 4.26:1 | AA large text | Lc 30.0 | Non-text elements, placeholder text |
| #5B709F text on white | 4.92:1 | AA | Lc 74.1 | Content text, not long reading |
| #5B709F text on black | 4.26:1 | AA large text | Lc -27.6 | 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
#F4F5F9
oklch(97.1% 0.005 275)
-
Step 100
100
#E6EAF1
oklch(93.6% 0.01 261.8)
-
Step 200
200
#D3D9E6
oklch(88.5% 0.019 266)
-
Step 300
300
#B6C1D8
oklch(81% 0.035 265.2)
-
Step 400
400
#90A1C4
oklch(70.8% 0.055 264.7)
-
Step 500
500
#7589B6
oklch(63.2% 0.072 265.8)
-
Step 600
600 (this color)
#5B709F
oklch(54.8% 0.078 265.4)
-
Step 700
700
#4D608A
oklch(49.2% 0.072 265.2)
-
Step 800
800
#3F4E70
oklch(42.6% 0.06 265.7)
-
Step 900
900
#36415B
oklch(37.7% 0.047 266.5)
-
Step 950
950
#1F2635
oklch(26.9% 0.03 265.1)
#5B709F 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) | #5F74A1 | 0.013 |
| Deuteranopia (no green cones) | #596E9E | 0.007 |
| Tritanopia (no blue cones) | #437A81 | 0.070 |
| Achromatopsia (no color) | #707070 | 0.078 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B709F
#5B709F
oklch(54.8% 0.078 265.4)
- #866E38
#866E38
oklch(55% 0.078 85.7)
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 #5B709F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Blue #49759C ΔE 0.026
- Stormy Blue #507B9C ΔE 0.035
- Flat Blue #3C73A8 ΔE 0.035
- Metallic Blue #4F738E ΔE 0.035
- Muted Blue #3B719F ΔE 0.035
- Cerulean #457B9D ΔE 0.039
- French Blue #436BAD ΔE 0.041
- Steel Blue #4682B4 ΔE 0.054
Use #5B709F 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.