#316DF9
Closest named color: Cerulean Blue (#056EEE). oklch(58% 0.219 263.5), rgb(49, 109, 249).
Aa
Black text reads best on this color (4.68:1).
About this color
#316DF9 is a medium-dark, vivid blue. In OKLCH its lightness is 58%, its chroma 0.219 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Cerulean Blue (#056EEE), ΔE 0.026 away. Black text reads best on it, at 4.68:1.
| Hue family | Blues |
| Lightness | medium-dark (58%) |
| Chroma | vivid (0.219) |
| Temperature | cool |
| Nearest name | Cerulean Blue (#056EEE) |
| Black text | 4.68:1 |
| White text | 4.48:1 |
Values
| HEX | #316DF9 |
| RGB | rgb(49, 109, 249) |
| HSL | hsl(222, 94%, 58%) |
| OKLCH | oklch(58% 0.219 263.5) |
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 #316DF9 | 4.48:1 | AA large text | Lc -75.9 | Fine for body text |
| Black text on #316DF9 | 4.68:1 | AA | Lc 33.6 | Non-text elements, placeholder text |
| #316DF9 text on white | 4.48:1 | AA large text | Lc 70.4 | Content text, not long reading |
| #316DF9 text on black | 4.68:1 | AA | Lc -31.2 | 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
#C7DAFE
oklch(88.6% 0.054 263.2)
-
Step 300
300
#A1C1FF
oklch(81% 0.095 263.3)
-
Step 400
400
#6E9DFF
oklch(70.6% 0.153 263.6)
-
Step 500
500
#4881FF
oklch(63.2% 0.197 263.5)
-
Step 600
600 (this color)
#316DF9
oklch(58% 0.219 263.5)
-
Step 700
700
#1E53D1
oklch(49.1% 0.202 263.4)
-
Step 800
800
#1A45A9
oklch(42.8% 0.168 263.4)
-
Step 900
900
#1B3B86
oklch(37.7% 0.132 263.8)
-
Step 950
950
#10234E
oklch(26.8% 0.083 263.8)
#316DF9 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) | #0081FE | 0.048 |
| Deuteranopia (no green cones) | #006EF6 | 0.020 |
| Tritanopia (no blue cones) | #0090A8 | 0.170 |
| Achromatopsia (no color) | #777777 | 0.219 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #316DF9
#316DF9
oklch(58% 0.219 263.5)
- #9C7300
#9C7300
oklch(58.1% 0.119 83.6)
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 #316DF9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cerulean Blue #056EEE ΔE 0.026
- Clear Blue #247AFD ΔE 0.031
- Bright Blue #0165FC ΔE 0.031
- Neon Blue #4361EE ΔE 0.032
- Royal Blue #4169E1 ΔE 0.038
- Azul #1D5DEC ΔE 0.047
- Warm Blue #4B57DB ΔE 0.067
- Electric Blue #0652FF ΔE 0.067
Use #316DF9 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.