#55679D
Closest named color: French Blue (#436BAD). oklch(52.3% 0.088 269.2), rgb(85, 103, 157).
Aa
White text reads best on this color (5.50:1).
About this color
#55679D is a medium-dark, moderately saturated blue. In OKLCH its lightness is 52%, its chroma 0.088 and its hue 269°. Its hue sits on the cool side of the wheel. The nearest named color is French Blue (#436BAD), ΔE 0.031 away. White text reads best on it, at 5.50:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.088) |
| Temperature | cool |
| Nearest name | French Blue (#436BAD) |
| Black text | 3.81:1 |
| White text | 5.50:1 |
Values
| HEX | #55679D |
| RGB | rgb(85, 103, 157) |
| HSL | hsl(225, 30%, 47%) |
| OKLCH | oklch(52.3% 0.088 269.2) |
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 #55679D | 5.50:1 | AA | Lc -82.7 | Fine for body text |
| Black text on #55679D | 3.81:1 | AA large text | Lc 26.6 | Dividers and decoration only |
| #55679D text on white | 5.50:1 | AA | Lc 77.4 | Fine for body text |
| #55679D text on black | 3.81:1 | AA large text | Lc -24.3 | 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
#F4F5F9
oklch(97.1% 0.005 275)
-
Step 100
100
#E6EAF2
oklch(93.6% 0.012 264.5)
-
Step 200
200
#D3D9E9
oklch(88.6% 0.023 269.4)
-
Step 300
300
#B5C0DD
oklch(80.9% 0.043 269)
-
Step 400
400
#8F9FCC
oklch(70.6% 0.069 269.4)
-
Step 500
500
#7487BF
oklch(63.1% 0.088 269.4)
-
Step 600
600
#5D70AB
oklch(55.6% 0.095 269.6)
-
Step 700
700 (this color)
#55679D
oklch(52.3% 0.088 269.2)
-
Step 800
800
#3F4D77
oklch(42.8% 0.072 269.2)
-
Step 900
900
#354060
oklch(37.7% 0.057 269.1)
-
Step 950
950
#1F2638
oklch(27.1% 0.035 267.7)
#55679D 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) | #536C9F | 0.014 |
| Deuteranopia (no green cones) | #4C669C | 0.012 |
| Tritanopia (no blue cones) | #3B727B | 0.078 |
| Achromatopsia (no color) | #696969 | 0.088 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #55679D
#55679D
oklch(52.3% 0.088 269.2)
- #7E6725
#7E6725
oklch(52.3% 0.089 89.5)
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 #55679D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- French Blue #436BAD ΔE 0.031
- Dusky Blue #475F94 ΔE 0.033
- Muted Blue #3B719F ΔE 0.037
- Flat Blue #3C73A8 ΔE 0.040
- Dull Blue #49759C ΔE 0.042
- Denim #3B638C ΔE 0.045
- Metallic Blue #4F738E ΔE 0.048
- Denim Blue #3B5B92 ΔE 0.052
Use #55679D 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.