#5376E0
Closest named color: Royal Blue (#4169E1). oklch(59.4% 0.166 267.5), rgb(83, 118, 224).
Aa
Black text reads best on this color (5.03:1).
About this color
#5376E0 is a medium-dark, vivid blue. In OKLCH its lightness is 59%, its chroma 0.166 and its hue 267°. Its hue sits on the cool side of the wheel. The nearest named color is Royal Blue (#4169E1), ΔE 0.041 away. Black text reads best on it, at 5.03:1.
| Hue family | Blues |
| Lightness | medium-dark (59%) |
| Chroma | vivid (0.166) |
| Temperature | cool |
| Nearest name | Royal Blue (#4169E1) |
| Black text | 5.03:1 |
| White text | 4.17:1 |
Values
| HEX | #5376E0 |
| RGB | rgb(83, 118, 224) |
| HSL | hsl(225, 69%, 60%) |
| OKLCH | oklch(59.4% 0.166 267.5) |
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 #5376E0 | 4.17:1 | AA large text | Lc -73.9 | Content text, not long reading |
| Black text on #5376E0 | 5.03:1 | AA | Lc 35.6 | Non-text elements, placeholder text |
| #5376E0 text on white | 4.17:1 | AA large text | Lc 68.4 | Content text, not long reading |
| #5376E0 text on black | 5.03:1 | AA | Lc -33.2 | 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 500.
-
Step 50
50
#F2F5FD
oklch(97% 0.011 269.6)
-
Step 100
100
#E3EAFA
oklch(93.6% 0.023 266.9)
-
Step 200
200
#CCD9F8
oklch(88.5% 0.045 267.4)
-
Step 300
300
#AAC0F6
oklch(81% 0.08 267.4)
-
Step 400
400
#7D9DF2
oklch(70.8% 0.13 267.4)
-
Step 500
500 (this color)
#5376E0
oklch(59.4% 0.166 267.5)
-
Step 600
600
#4568DB
oklch(55.5% 0.18 267.5)
-
Step 700
700
#3756BE
oklch(49.1% 0.167 267.3)
-
Step 800
800
#2E479A
oklch(42.7% 0.139 267.6)
-
Step 900
900
#283C7A
oklch(37.6% 0.108 267.5)
-
Step 950
950
#182448
oklch(27.1% 0.069 267.8)
#5376E0 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) | #4083E4 | 0.035 |
| Deuteranopia (no green cones) | #2476DE | 0.039 |
| Tritanopia (no blue cones) | #008EA0 | 0.140 |
| Achromatopsia (no color) | #7C7C7C | 0.166 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5376E0
#5376E0
oklch(59.4% 0.166 267.5)
- #9D7900
#9D7900
oklch(59.5% 0.122 87.7)
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 #5376E0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Royal Blue #4169E1 ΔE 0.041
- Cornflower #6A79F7 ΔE 0.046
- Soft Blue #6488EA ΔE 0.054
- Clear Blue #247AFD ΔE 0.054
- Dark Periwinkle #665FD1 ΔE 0.060
- Windows Blue #3778BF ΔE 0.060
- Cerulean Blue #056EEE ΔE 0.060
- Dark Sky Blue #448EE4 ΔE 0.062
Use #5376E0 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.