#57679E
Closest named color: French Blue (#436BAD). oklch(52.5% 0.089 270.8), rgb(87, 103, 158).
Aa
White text reads best on this color (5.47:1).
About this color
#57679E is a medium-dark, moderately saturated blue. In OKLCH its lightness is 52%, its chroma 0.089 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is French Blue (#436BAD), ΔE 0.032 away. White text reads best on it, at 5.47:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.089) |
| Temperature | cool |
| Nearest name | French Blue (#436BAD) |
| Black text | 3.83:1 |
| White text | 5.47:1 |
Values
| HEX | #57679E |
| RGB | rgb(87, 103, 158) |
| HSL | hsl(226, 29%, 48%) |
| OKLCH | oklch(52.5% 0.089 270.8) |
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 #57679E | 5.47:1 | AA | Lc -82.5 | Fine for body text |
| Black text on #57679E | 3.83:1 | AA large text | Lc 26.8 | Dividers and decoration only |
| #57679E text on white | 5.47:1 | AA | Lc 77.2 | Fine for body text |
| #57679E text on black | 3.83:1 | AA large text | Lc -24.5 | 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
#F4F5F9
oklch(97.1% 0.005 275)
-
Step 100
100
#E7EAF2
oklch(93.7% 0.011 269.5)
-
Step 200
200
#D3D9E8
oklch(88.5% 0.022 268.4)
-
Step 300
300
#B7C0DB
oklch(80.9% 0.039 270.9)
-
Step 400
400
#919FC9
oklch(70.7% 0.064 270.4)
-
Step 500
500
#7787BC
oklch(63.2% 0.082 271)
-
Step 600
600 (this color)
#57679E
oklch(52.5% 0.089 270.8)
-
Step 700
700
#4F5E90
oklch(49.2% 0.083 270.4)
-
Step 800
800
#414D75
oklch(42.8% 0.068 270.6)
-
Step 900
900
#37405E
oklch(37.7% 0.053 270.9)
-
Step 950
950
#202637
oklch(27.1% 0.033 269.2)
#57679E 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) | #536DA0 | 0.017 |
| Deuteranopia (no green cones) | #4D669D | 0.014 |
| Tritanopia (no blue cones) | #3E727B | 0.079 |
| Achromatopsia (no color) | #696969 | 0.089 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #57679E
#57679E
oklch(52.5% 0.089 270.8)
- #7E6825
#7E6825
oklch(52.5% 0.089 90.6)
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 #57679E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- French Blue #436BAD ΔE 0.032
- Dusky Blue #475F94 ΔE 0.035
- Muted Blue #3B719F ΔE 0.039
- Flat Blue #3C73A8 ΔE 0.041
- Dull Blue #49759C ΔE 0.043
- Denim #3B638C ΔE 0.048
- Metallic Blue #4F738E ΔE 0.049
- Denim Blue #3B5B92 ΔE 0.055
Use #57679E 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.