#4399FA
Closest named color: Chefchaouen Blue (#4895EF). oklch(67.7% 0.166 253.7), rgb(67, 153, 250).
Aa
Black text reads best on this color (7.17:1).
About this color
#4399FA is a medium-light, vivid blue. In OKLCH its lightness is 68%, its chroma 0.166 and its hue 254°. Its hue sits on the cool side of the wheel. The nearest named color is Chefchaouen Blue (#4895EF), ΔE 0.018 away. Black text reads best on it, at 7.17:1.
| Hue family | Blues |
| Lightness | medium-light (68%) |
| Chroma | vivid (0.166) |
| Temperature | cool |
| Nearest name | Chefchaouen Blue (#4895EF) |
| Black text | 7.17:1 |
| White text | 2.92:1 |
Values
| HEX | #4399FA |
| RGB | rgb(67, 153, 250) |
| HSL | hsl(212, 95%, 62%) |
| OKLCH | oklch(67.7% 0.166 253.7) |
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 #4399FA | 2.92:1 | Fails | Lc -60.6 | Content text, not long reading |
| Black text on #4399FA | 7.17:1 | AAA | Lc 48.7 | Large or bold text, headings |
| #4399FA text on white | 2.92:1 | Fails | Lc 55.3 | Large or bold text, headings |
| #4399FA text on black | 7.17:1 | AAA | Lc -46.5 | 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
#EFF6FF
oklch(97% 0.014 254.6)
-
Step 100
100
#DCECFE
oklch(93.7% 0.03 251.3)
-
Step 200
200
#BFDCFF
oklch(88.5% 0.058 253.3)
-
Step 300
300
#94C4FF
oklch(80.8% 0.098 254)
-
Step 400
400 (this color)
#4399FA
oklch(67.7% 0.166 253.7)
-
Step 500
500
#0088FD
oklch(63.1% 0.199 253.8)
-
Step 600
600
#0072D6
oklch(55.6% 0.176 253.8)
-
Step 700
700
#0060B5
oklch(49.2% 0.155 253.6)
-
Step 800
800
#004E96
oklch(42.7% 0.135 253.8)
-
Step 900
900
#00417E
oklch(37.7% 0.118 253.6)
-
Step 950
950
#00264E
oklch(27% 0.085 253.5)
#4399FA 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) | #6BA0FE | 0.043 |
| Deuteranopia (no green cones) | #4E8FF8 | 0.026 |
| Tritanopia (no blue cones) | #00B0BD | 0.127 |
| Achromatopsia (no color) | #979797 | 0.166 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4399FA
#4399FA
oklch(67.7% 0.166 253.7)
- #CB8700
#CB8700
oklch(67.6% 0.144 73.6)
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 #4399FA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chefchaouen Blue #4895EF ΔE 0.018
- Cornflower Blue #6495ED ΔE 0.032
- Dodger Blue #1E90FF ΔE 0.035
- Dark Sky Blue #448EE4 ΔE 0.040
- Soft Blue #6488EA ΔE 0.050
- Periwinkle Blue #8F99FB ΔE 0.079
- Lavender Blue #8B88F8 ΔE 0.081
- Cornflower #6A79F7 ΔE 0.083
Use #4399FA 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.