#5F64A5
Closest named color: French Blue (#436BAD). oklch(52.8% 0.102 279), rgb(95, 100, 165).
Aa
White text reads best on this color (5.45:1).
About this color
#5F64A5 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 53%, its chroma 0.102 and its hue 279°. Its hue sits on the cool side of the wheel. The nearest named color is French Blue (#436BAD), ΔE 0.038 away. White text reads best on it, at 5.45:1.
| Hue family | Blues |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.102) |
| Temperature | cool |
| Nearest name | French Blue (#436BAD) |
| Black text | 3.85:1 |
| White text | 5.45:1 |
Values
| HEX | #5F64A5 |
| RGB | rgb(95, 100, 165) |
| HSL | hsl(236, 28%, 51%) |
| OKLCH | oklch(52.8% 0.102 279) |
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 #5F64A5 | 5.45:1 | AA | Lc -82.4 | Fine for body text |
| Black text on #5F64A5 | 3.85:1 | AA large text | Lc 27.0 | Dividers and decoration only |
| #5F64A5 text on white | 5.45:1 | AA | Lc 77.1 | Fine for body text |
| #5F64A5 text on black | 3.85:1 | AA large text | Lc -24.6 | 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
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E8E9F3
oklch(93.6% 0.013 281.6)
-
Step 200
200
#D5D8EA
oklch(88.5% 0.025 278.3)
-
Step 300
300
#BABEDF
oklch(80.9% 0.047 279.8)
-
Step 400
400
#969CCE
oklch(70.6% 0.073 279)
-
Step 500
500
#7D83C1
oklch(63% 0.093 279.1)
-
Step 600
600 (this color)
#5F64A5
oklch(52.8% 0.102 279)
-
Step 700
700
#555A95
oklch(49% 0.094 278.6)
-
Step 800
800
#464A79
oklch(42.7% 0.078 278.9)
-
Step 900
900
#3B3E62
oklch(37.8% 0.061 279.4)
-
Step 950
950
#222439
oklch(26.9% 0.039 279.2)
#5F64A5 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) | #4D6CA8 | 0.030 |
| Deuteranopia (no green cones) | #4967A3 | 0.030 |
| Tritanopia (no blue cones) | #49717C | 0.090 |
| Achromatopsia (no color) | #696969 | 0.102 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5F64A5
#5F64A5
oklch(52.8% 0.102 279)
- #7A6C15
#7A6C15
oklch(52.9% 0.102 99.5)
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 #5F64A5, closest first.
No curated palette has a color within ΔE 0.04 of #5F64A5.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- French Blue #436BAD ΔE 0.038
- Dusky Blue #475F94 ΔE 0.046
- Flat Blue #3C73A8 ΔE 0.054
- Muted Blue #3B719F ΔE 0.055
- Dull Blue #49759C ΔE 0.058
- Mid Blue #276AB3 ΔE 0.061
- Iris #6258C4 ΔE 0.062
- Denim #3B638C ΔE 0.063
Use #5F64A5 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.