#4387F7
Closest named color: Dodger Blue (#1E90FF). oklch(63.7% 0.181 259.9), rgb(67, 135, 247).
Aa
Black text reads best on this color (6.04:1).
About this color
#4387F7 is a medium-light, vivid blue. In OKLCH its lightness is 64%, its chroma 0.181 and its hue 260°. Its hue sits on the cool side of the wheel. The nearest named color is Dodger Blue (#1E90FF), ΔE 0.028 away. Black text reads best on it, at 6.04:1.
| Hue family | Blues |
| Lightness | medium-light (64%) |
| Chroma | vivid (0.181) |
| Temperature | cool |
| Nearest name | Dodger Blue (#1E90FF) |
| Black text | 6.04:1 |
| White text | 3.47:1 |
Values
| HEX | #4387F7 |
| RGB | rgb(67, 135, 247) |
| HSL | hsl(217, 92%, 62%) |
| OKLCH | oklch(63.7% 0.181 259.9) |
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 #4387F7 | 3.47:1 | AA large text | Lc -67.3 | Content text, not long reading |
| Black text on #4387F7 | 6.04:1 | AA | Lc 42.2 | Non-text elements, placeholder text |
| #4387F7 text on white | 3.47:1 | AA large text | Lc 61.9 | Content text, not long reading |
| #4387F7 text on black | 6.04:1 | AA | Lc -39.8 | 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 500.
-
Step 50
50
#F1F6FE
oklch(97.2% 0.012 259.8)
-
Step 100
100
#E0EBFC
oklch(93.7% 0.026 259)
-
Step 200
200
#C6DAFA
oklch(88.4% 0.049 259.8)
-
Step 300
300
#9FC2FA
oklch(80.9% 0.088 259.7)
-
Step 400
400
#6AA0F8
oklch(70.7% 0.142 259.7)
-
Step 500
500 (this color)
#4387F7
oklch(63.7% 0.181 259.9)
-
Step 600
600
#206BE4
oklch(55.5% 0.198 260)
-
Step 700
700
#1259C6
oklch(49.2% 0.183 259.8)
-
Step 800
800
#1349A0
oklch(42.6% 0.152 260)
-
Step 900
900
#173E7F
oklch(37.6% 0.119 260.1)
-
Step 950
950
#0F254A
oklch(27% 0.074 260.2)
#4387F7 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) | #4C92FB | 0.031 |
| Deuteranopia (no green cones) | #2382F5 | 0.026 |
| Tritanopia (no blue cones) | #00A1B3 | 0.142 |
| Achromatopsia (no color) | #8A8A8A | 0.181 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4387F7
#4387F7
oklch(63.7% 0.181 259.9)
- #B58000
#B58000
oklch(63.6% 0.132 79.4)
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 #4387F7, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dodger Blue #1E90FF ΔE 0.028
- Dark Sky Blue #448EE4 ΔE 0.037
- Soft Blue #6488EA ΔE 0.037
- Chefchaouen Blue #4895EF ΔE 0.042
- Clear Blue #247AFD ΔE 0.043
- Cornflower #6A79F7 ΔE 0.048
- Cornflower Blue #6495ED ΔE 0.055
- Water Blue #0E87CC ΔE 0.073
Use #4387F7 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.