#55679C
Closest named color: French Blue (#436BAD). oklch(52.2% 0.087 269), rgb(85, 103, 156).
Aa
White text reads best on this color (5.51:1).
About this color
#55679C is a medium-dark, moderately saturated blue. In OKLCH its lightness is 52%, its chroma 0.087 and its hue 269°. 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 5.51:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.087) |
| Temperature | cool |
| Nearest name | French Blue (#436BAD) |
| Black text | 3.80:1 |
| White text | 5.51:1 |
Values
| HEX | #55679C |
| RGB | rgb(85, 103, 156) |
| HSL | hsl(225, 29%, 47%) |
| OKLCH | oklch(52.2% 0.087 269) |
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 #55679C | 5.51:1 | AA | Lc -82.8 | Fine for body text |
| Black text on #55679C | 3.80:1 | AA large text | Lc 26.6 | Dividers and decoration only |
| #55679C text on white | 5.51:1 | AA | Lc 77.5 | Fine for body text |
| #55679C text on black | 3.80:1 | 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
#8F9FCB
oklch(70.6% 0.067 269.1)
-
Step 500
500
#7487BE
oklch(63% 0.086 269.2)
-
Step 600
600
#5D70AA
oklch(55.5% 0.093 269.4)
-
Step 700
700 (this color)
#55679C
oklch(52.2% 0.087 269)
-
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)
#55679C 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) | #546C9E | 0.014 |
| Deuteranopia (no green cones) | #4D669B | 0.011 |
| Tritanopia (no blue cones) | #3B727A | 0.078 |
| Achromatopsia (no color) | #696969 | 0.087 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #55679C
#55679C
oklch(52.2% 0.087 269)
- #7E6727
#7E6727
oklch(52.3% 0.087 89.1)
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 #55679C, 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 0.032
- Muted Blue #3B719F ΔE 0.037
- Flat Blue #3C73A8 ΔE 0.041
- Dull Blue #49759C ΔE 0.041
- Denim #3B638C ΔE 0.044
- Metallic Blue #4F738E ΔE 0.047
- Denim Blue #3B5B92 ΔE 0.052
Use #55679C 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.