#316EFB
Closest named color: Cerulean Blue (#056EEE). oklch(58.4% 0.22 263.4), rgb(49, 110, 251).
Aa
Black text reads best on this color (4.75:1).
About this color
#316EFB is a medium-dark, vivid blue. In OKLCH its lightness is 58%, its chroma 0.220 and its hue 263°. Its hue sits on the cool side of the wheel. The nearest named color is Cerulean Blue (#056EEE), ΔE 0.028 away. Black text reads best on it, at 4.75:1.
| Hue family | Blues |
| Lightness | medium-dark (58%) |
| Chroma | vivid (0.220) |
| Temperature | cool |
| Nearest name | Cerulean Blue (#056EEE) |
| Black text | 4.75:1 |
| White text | 4.41:1 |
Values
| HEX | #316EFB |
| RGB | rgb(49, 110, 251) |
| HSL | hsl(222, 96%, 59%) |
| OKLCH | oklch(58.4% 0.22 263.4) |
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 #316EFB | 4.41:1 | AA large text | Lc -75.5 | Fine for body text |
| Black text on #316EFB | 4.75:1 | AA | Lc 34.1 | Non-text elements, placeholder text |
| #316EFB text on white | 4.41:1 | AA large text | Lc 70.0 | Content text, not long reading |
| #316EFB text on black | 4.75:1 | AA | Lc -31.7 | 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
#F1F6FF
oklch(97.2% 0.013 262.4)
-
Step 100
100
#E0EAFE
oklch(93.6% 0.029 264.4)
-
Step 200
200
#C6DAFE
oklch(88.5% 0.054 262.2)
-
Step 300
300
#A1C1FF
oklch(81% 0.095 263.3)
-
Step 400
400
#6E9DFF
oklch(70.6% 0.153 263.6)
-
Step 500
500
#4781FF
oklch(63.2% 0.197 263.3)
-
Step 600
600 (this color)
#316EFB
oklch(58.4% 0.22 263.4)
-
Step 700
700
#1D52D2
oklch(49% 0.205 263.5)
-
Step 800
800
#1945AA
oklch(42.8% 0.169 263.3)
-
Step 900
900
#1A3B86
oklch(37.6% 0.132 263.5)
-
Step 950
950
#10234F
oklch(26.9% 0.085 264)
#316EFB 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) | #0082FF | 0.048 |
| Deuteranopia (no green cones) | #006FF8 | 0.020 |
| Tritanopia (no blue cones) | #0091AA | 0.169 |
| Achromatopsia (no color) | #787878 | 0.220 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #316EFB
#316EFB
oklch(58.4% 0.22 263.4)
- #9D7400
#9D7400
oklch(58.4% 0.12 83.8)
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 #316EFB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cerulean Blue #056EEE ΔE 0.028
- Clear Blue #247AFD ΔE 0.028
- Bright Blue #0165FC ΔE 0.032
- Neon Blue #4361EE ΔE 0.035
- Royal Blue #4169E1 ΔE 0.041
- Azul #1D5DEC ΔE 0.050
- Cornflower #6A79F7 ΔE 0.068
- Electric Blue #0652FF ΔE 0.069
Use #316EFB 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.