#5271A6
Closest named color: Flat Blue (#3C73A8). oklch(54.8% 0.091 260.7), rgb(82, 113, 166).
Aa
White text reads best on this color (4.91:1).
About this color
#5271A6 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 55%, its chroma 0.091 and its hue 261°. Its hue sits on the cool side of the wheel. The nearest named color is Flat Blue (#3C73A8), ΔE 0.023 away. White text reads best on it, at 4.91:1.
| Hue family | Blues |
| Lightness | medium-dark (55%) |
| Chroma | moderately saturated (0.091) |
| Temperature | cool |
| Nearest name | Flat Blue (#3C73A8) |
| Black text | 4.27:1 |
| White text | 4.91:1 |
Values
| HEX | #5271A6 |
| RGB | rgb(82, 113, 166) |
| HSL | hsl(218, 34%, 49%) |
| OKLCH | oklch(54.8% 0.091 260.7) |
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 #5271A6 | 4.91:1 | AA | Lc -79.4 | Fine for body text |
| Black text on #5271A6 | 4.27:1 | AA large text | Lc 30.1 | Non-text elements, placeholder text |
| #5271A6 text on white | 4.91:1 | AA | Lc 74.0 | Content text, not long reading |
| #5271A6 text on black | 4.27:1 | AA large text | Lc -27.7 | 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
#F3F5F9
oklch(97% 0.006 264.5)
-
Step 100
100
#E5EAF2
oklch(93.6% 0.012 259.8)
-
Step 200
200
#D1DAE9
oklch(88.6% 0.023 260.7)
-
Step 300
300
#B2C2DC
oklch(81% 0.041 260.1)
-
Step 400
400
#8AA2CA
oklch(70.8% 0.065 260.5)
-
Step 500
500
#6C8ABC
oklch(63.1% 0.083 260.4)
-
Step 600
600 (this color)
#5271A6
oklch(54.8% 0.091 260.7)
-
Step 700
700
#456191
oklch(49.2% 0.084 260.7)
-
Step 800
800
#394F75
oklch(42.7% 0.069 260.9)
-
Step 900
900
#31425F
oklch(37.8% 0.055 260.8)
-
Step 950
950
#1D2737
oklch(27.1% 0.033 259.6)
#5271A6 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) | #5D75A8 | 0.019 |
| Deuteranopia (no green cones) | #536DA5 | 0.011 |
| Tritanopia (no blue cones) | #2C7D84 | 0.082 |
| Achromatopsia (no color) | #707070 | 0.091 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5271A6
#5271A6
oklch(54.8% 0.091 260.7)
- #8C6B2C
#8C6B2C
oklch(54.8% 0.09 80.9)
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 #5271A6, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Flat Blue #3C73A8 ΔE 0.023
- Dull Blue #49759C ΔE 0.024
- Muted Blue #3B719F ΔE 0.028
- French Blue #436BAD ΔE 0.029
- Stormy Blue #507B9C ΔE 0.037
- Cerulean #457B9D ΔE 0.037
- Metallic Blue #4F738E ΔE 0.041
- Windows Blue #3778BF ΔE 0.044
Use #5271A6 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.