#5376BE
Closest named color: Windows Blue (#3778BF). oklch(57.3% 0.119 263.5), rgb(83, 118, 190).
Aa
Black text reads best on this color (4.70:1).
About this color
#5376BE is a medium-dark, moderately saturated blue. In OKLCH its lightness is 57%, its chroma 0.119 and its hue 263°. Its hue sits on the cool side of the wheel. The nearest named color is Windows Blue (#3778BF), ΔE 0.026 away. Black text reads best on it, at 4.70:1.
| Hue family | Blues |
| Lightness | medium-dark (57%) |
| Chroma | moderately saturated (0.119) |
| Temperature | cool |
| Nearest name | Windows Blue (#3778BF) |
| Black text | 4.70:1 |
| White text | 4.46:1 |
Values
| HEX | #5376BE |
| RGB | rgb(83, 118, 190) |
| HSL | hsl(220, 45%, 54%) |
| OKLCH | oklch(57.3% 0.119 263.5) |
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 #5376BE | 4.46:1 | AA large text | Lc -76.3 | Fine for body text |
| Black text on #5376BE | 4.70:1 | AA | Lc 33.3 | Non-text elements, placeholder text |
| #5376BE text on white | 4.46:1 | AA large text | Lc 70.8 | Content text, not long reading |
| #5376BE text on black | 4.70:1 | AA | Lc -30.8 | Non-text elements, placeholder text |
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
#E4EAF5
oklch(93.6% 0.016 262.8)
-
Step 200
200
#CFDAED
oklch(88.6% 0.029 261.5)
-
Step 300
300
#AFC1E4
oklch(80.9% 0.053 263.7)
-
Step 400
400
#85A0D6
oklch(70.6% 0.085 263.8)
-
Step 500
500
#6788CC
oklch(63.1% 0.11 263.8)
-
Step 600
600 (this color)
#5376BE
oklch(57.3% 0.119 263.5)
-
Step 700
700
#3F5E9F
oklch(49% 0.111 263.6)
-
Step 800
800
#344D81
oklch(42.6% 0.092 263.6)
-
Step 900
900
#2E4167
oklch(37.8% 0.07 263.2)
-
Step 950
950
#1B263D
oklch(27% 0.046 264.1)
#5376BE 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) | #587DC1 | 0.021 |
| Deuteranopia (no green cones) | #4B73BC | 0.013 |
| Tritanopia (no blue cones) | #098691 | 0.106 |
| Achromatopsia (no color) | #777777 | 0.119 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5376BE
#5376BE
oklch(57.3% 0.119 263.5)
- #997100
#997100
oklch(57.3% 0.118 83.9)
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 #5376BE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Windows Blue #3778BF ΔE 0.026
- Steel Blue #4682B4 ΔE 0.041
- Cool Blue #4984B8 ΔE 0.043
- French Blue #436BAD ΔE 0.044
- Flat Blue #3C73A8 ΔE 0.044
- Off Blue #5684AE ΔE 0.052
- Nice Blue #107AB0 ΔE 0.055
- Dull Blue #49759C ΔE 0.056
Use #5376BE 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.