#5164AF
Closest named color: French Blue (#436BAD). oklch(52.4% 0.12 271), rgb(81, 100, 175).
Aa
White text reads best on this color (5.53:1).
About this color
#5164AF is a medium-dark, moderately saturated blue. In OKLCH its lightness is 52%, its chroma 0.120 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is French Blue (#436BAD), ΔE 0.024 away. White text reads best on it, at 5.53:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.120) |
| Temperature | cool |
| Nearest name | French Blue (#436BAD) |
| Black text | 3.79:1 |
| White text | 5.53:1 |
Values
| HEX | #5164AF |
| RGB | rgb(81, 100, 175) |
| HSL | hsl(228, 37%, 50%) |
| OKLCH | oklch(52.4% 0.12 271) |
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 #5164AF | 5.53:1 | AA | Lc -82.8 | Fine for body text |
| Black text on #5164AF | 3.79:1 | AA large text | Lc 26.6 | Dividers and decoration only |
| #5164AF text on white | 5.53:1 | AA | Lc 77.5 | Fine for body text |
| #5164AF text on black | 3.79:1 | 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 600.
-
Step 50
50
#F3F5FA
oklch(97% 0.007 268.5)
-
Step 100
100
#E6EAF5
oklch(93.7% 0.015 270)
-
Step 200
200
#D2D9EE
oklch(88.6% 0.03 271.1)
-
Step 300
300
#B3BFE4
oklch(80.8% 0.054 271)
-
Step 400
400
#8C9ED7
oklch(70.7% 0.086 270.6)
-
Step 500
500
#7185CC
oklch(63.1% 0.11 271)
-
Step 600
600 (this color)
#5164AF
oklch(52.4% 0.12 271)
-
Step 700
700
#4A5BA0
oklch(49.1% 0.112 271.3)
-
Step 800
800
#3D4B81
oklch(42.8% 0.091 271.1)
-
Step 900
900
#333F68
oklch(37.7% 0.072 270.3)
-
Step 950
950
#1E253D
oklch(27% 0.046 270.7)
#5164AF 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) | #456DB2 | 0.026 |
| Deuteranopia (no green cones) | #3A65AD | 0.027 |
| Tritanopia (no blue cones) | #237481 | 0.107 |
| Achromatopsia (no color) | #686868 | 0.120 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5164AF
#5164AF
oklch(52.4% 0.12 271)
- #816700
#816700
oklch(52.4% 0.107 91.4)
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 #5164AF, closest first.
No curated palette has a color within ΔE 0.04 of #5164AF.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- French Blue #436BAD ΔE 0.024
- Mid Blue #276AB3 ΔE 0.041
- Dusky Blue #475F94 ΔE 0.046
- Flat Blue #3C73A8 ΔE 0.049
- Iris #6258C4 ΔE 0.052
- Muted Blue #3B719F ΔE 0.053
- Windows Blue #3778BF ΔE 0.057
- Denim Blue #3B5B92 ΔE 0.059
Use #5164AF 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.