#0377FA
Closest named color: Clear Blue (#247AFD). oklch(59.3% 0.215 257.6), rgb(3, 119, 250).
Aa
Black text reads best on this color (5.02:1).
About this color
#0377FA is a medium-dark, vivid blue. In OKLCH its lightness is 59%, its chroma 0.215 and its hue 258°. Its hue sits on the cool side of the wheel. The nearest named color is Clear Blue (#247AFD), ΔE 0.015 away. Black text reads best on it, at 5.02:1.
| Hue family | Blues |
| Lightness | medium-dark (59%) |
| Chroma | vivid (0.215) |
| Temperature | cool |
| Nearest name | Clear Blue (#247AFD) |
| Black text | 5.02:1 |
| White text | 4.18:1 |
Values
| HEX | #0377FA |
| RGB | rgb(3, 119, 250) |
| HSL | hsl(212, 98%, 50%) |
| OKLCH | oklch(59.3% 0.215 257.6) |
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 #0377FA | 4.18:1 | AA large text | Lc -73.4 | Content text, not long reading |
| Black text on #0377FA | 5.02:1 | AA | Lc 36.2 | Non-text elements, placeholder text |
| #0377FA text on white | 4.18:1 | AA large text | Lc 67.9 | Content text, not long reading |
| #0377FA text on black | 5.02:1 | AA | Lc -33.7 | 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
#F0F6FE
oklch(97.1% 0.012 255.5)
-
Step 100
100
#DFEBFD
oklch(93.6% 0.028 258.4)
-
Step 200
200
#C3DBFD
oklch(88.5% 0.054 257.1)
-
Step 300
300
#99C3FF
oklch(80.9% 0.097 257.3)
-
Step 400
400
#5FA1FF
oklch(70.7% 0.154 257.4)
-
Step 500
500
#2D85FE
oklch(63.1% 0.198 257.8)
-
Step 600
600 (this color)
#0377FA
oklch(59.3% 0.215 257.6)
-
Step 700
700
#005BC3
oklch(49.1% 0.179 257.6)
-
Step 800
800
#004AA2
oklch(42.7% 0.156 257.7)
-
Step 900
900
#083E84
oklch(37.6% 0.129 257.8)
-
Step 950
950
#08254D
oklch(26.9% 0.082 257.6)
#0377FA 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) | #0086FF | 0.038 |
| Deuteranopia (no green cones) | #0072F7 | 0.013 |
| Tritanopia (no blue cones) | #0098AD | 0.162 |
| Achromatopsia (no color) | #7C7C7C | 0.215 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0377FA
#0377FA
oklch(59.3% 0.215 257.6)
- #A67300
#A67300
oklch(59.3% 0.124 77.8)
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 #0377FA, closest first.
No curated palette has a color within ΔE 0.04 of #0377FA.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Clear Blue #247AFD ΔE 0.015
- Cerulean Blue #056EEE ΔE 0.028
- Bright Blue #0165FC ΔE 0.043
- Royal Blue #4169E1 ΔE 0.052
- Neon Blue #4361EE ΔE 0.056
- Azul #1D5DEC ΔE 0.064
- Dodger Blue #1E90FF ΔE 0.066
- Cornflower #6A79F7 ΔE 0.074
Use #0377FA 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.