#5199EB
Closest named color: Chefchaouen Blue (#4895EF). oklch(67.3% 0.142 253.3), rgb(81, 153, 235).
Aa
Black text reads best on this color (7.10:1).
About this color
#5199EB is a medium-light, vivid blue. In OKLCH its lightness is 67%, its chroma 0.142 and its hue 253°. Its hue sits on the cool side of the wheel. The nearest named color is Chefchaouen Blue (#4895EF), ΔE 0.016 away. Black text reads best on it, at 7.10:1.
| Hue family | Blues |
| Lightness | medium-light (67%) |
| Chroma | vivid (0.142) |
| Temperature | cool |
| Nearest name | Chefchaouen Blue (#4895EF) |
| Black text | 7.10:1 |
| White text | 2.95:1 |
Values
| HEX | #5199EB |
| RGB | rgb(81, 153, 235) |
| HSL | hsl(212, 79%, 62%) |
| OKLCH | oklch(67.3% 0.142 253.3) |
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 #5199EB | 2.95:1 | Fails | Lc -61.1 | Content text, not long reading |
| Black text on #5199EB | 7.10:1 | AAA | Lc 48.2 | Large or bold text, headings |
| #5199EB text on white | 2.95:1 | Fails | Lc 55.8 | Large or bold text, headings |
| #5199EB text on black | 7.10:1 | AAA | Lc -46.0 | Large or bold text, headings |
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 400.
-
Step 50
50
#F0F6FE
oklch(97.1% 0.012 255.5)
-
Step 100
100
#DEEBFB
oklch(93.5% 0.026 253.6)
-
Step 200
200
#C3DCFA
oklch(88.6% 0.049 253.1)
-
Step 300
300
#98C4F9
oklch(80.8% 0.089 253.5)
-
Step 400
400 (this color)
#5199EB
oklch(67.3% 0.142 253.3)
-
Step 500
500
#208AF3
oklch(63.2% 0.182 253.2)
-
Step 600
600
#0073D4
oklch(55.6% 0.172 253.1)
-
Step 700
700
#0060B4
oklch(49.1% 0.153 253.4)
-
Step 800
800
#004F95
oklch(42.8% 0.133 253.1)
-
Step 900
900
#00417D
oklch(37.6% 0.117 253.3)
-
Step 950
950
#05274A
oklch(27.1% 0.075 252.9)
#5199EB 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) | #759EEE | 0.041 |
| Deuteranopia (no green cones) | #5F8FE9 | 0.027 |
| Tritanopia (no blue cones) | #00ACB7 | 0.112 |
| Achromatopsia (no color) | #969696 | 0.142 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5199EB
#5199EB
oklch(67.3% 0.142 253.3)
- #CA8606
#CA8606
oklch(67.3% 0.142 73.1)
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 #5199EB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chefchaouen Blue #4895EF ΔE 0.016
- Cornflower Blue #6495ED ΔE 0.020
- Dark Sky Blue #448EE4 ΔE 0.034
- Soft Blue #6488EA ΔE 0.046
- Dodger Blue #1E90FF ΔE 0.053
- Faded Blue #658CBB ΔE 0.073
- Perrywinkle #8F8CE7 ΔE 0.073
- Periwinkle Blue #8F99FB ΔE 0.074
Use #5199EB 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.