#316BE9
Closest named color: Royal Blue (#4169E1). oklch(56.4% 0.201 263), rgb(49, 107, 233).
Aa
White text reads best on this color (4.76:1).
About this color
#316BE9 is a medium-dark, vivid blue. In OKLCH its lightness is 56%, its chroma 0.201 and its hue 263°. Its hue sits on the cool side of the wheel. The nearest named color is Royal Blue (#4169E1), ΔE 0.017 away. White text reads best on it, at 4.76:1.
| Hue family | Blues |
| Lightness | medium-dark (56%) |
| Chroma | vivid (0.201) |
| Temperature | cool |
| Nearest name | Royal Blue (#4169E1) |
| Black text | 4.41:1 |
| White text | 4.76:1 |
Values
| HEX | #316BE9 |
| RGB | rgb(49, 107, 233) |
| HSL | hsl(221, 81%, 55%) |
| OKLCH | oklch(56.4% 0.201 263) |
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 #316BE9 | 4.76:1 | AA | Lc -77.9 | Fine for body text |
| Black text on #316BE9 | 4.41:1 | AA large text | Lc 31.6 | Non-text elements, placeholder text |
| #316BE9 text on white | 4.76:1 | AA | Lc 72.5 | Content text, not long reading |
| #316BE9 text on black | 4.41:1 | AA large text | Lc -29.2 | Dividers and decoration only |
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
#F1F6FE
oklch(97.2% 0.012 259.8)
-
Step 100
100
#E1EAFC
oklch(93.6% 0.026 264.4)
-
Step 200
200
#C8DAFB
oklch(88.5% 0.05 262.6)
-
Step 300
300
#A2C1FC
oklch(80.9% 0.091 263)
-
Step 400
400
#709EFA
oklch(70.7% 0.144 263.1)
-
Step 500
500
#4B83F7
oklch(63.2% 0.184 262.9)
-
Step 600
600 (this color)
#316BE9
oklch(56.4% 0.201 263)
-
Step 700
700
#2256C8
oklch(49.1% 0.186 262.9)
-
Step 800
800
#1E47A2
oklch(42.7% 0.155 263.1)
-
Step 900
900
#1D3D80
oklch(37.7% 0.12 262.8)
-
Step 950
950
#12244B
oklch(26.9% 0.076 263.5)
#316BE9 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) | #007CED | 0.042 |
| Deuteranopia (no green cones) | #006BE7 | 0.021 |
| Tritanopia (no blue cones) | #008AA0 | 0.155 |
| Achromatopsia (no color) | #737373 | 0.201 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #316BE9
#316BE9
oklch(56.4% 0.201 263)
- #966E00
#966E00
oklch(56.4% 0.116 83.3)
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 #316BE9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Royal Blue #4169E1 ΔE 0.017
- Cerulean Blue #056EEE ΔE 0.019
- Neon Blue #4361EE ΔE 0.027
- Azul #1D5DEC ΔE 0.039
- Bright Blue #0165FC ΔE 0.039
- Clear Blue #247AFD ΔE 0.045
- Warm Blue #4B57DB ΔE 0.052
- Dark Periwinkle #665FD1 ΔE 0.069
Use #316BE9 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.