#316EAC
Closest named color: French Blue (#436BAD). oklch(52.8% 0.116 251.3), rgb(49, 110, 172).
Aa
White text reads best on this color (5.30:1).
About this color
#316EAC is a medium-dark, moderately saturated blue. In OKLCH its lightness is 53%, its chroma 0.116 and its hue 251°. Its hue sits on the cool side of the wheel. The nearest named color is French Blue (#436BAD), ΔE 0.018 away. White text reads best on it, at 5.30:1.
| Hue family | Blues |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.116) |
| Temperature | cool |
| Nearest name | French Blue (#436BAD) |
| Black text | 3.95:1 |
| White text | 5.30:1 |
Values
| HEX | #316EAC |
| RGB | rgb(49, 110, 172) |
| HSL | hsl(210, 56%, 43%) |
| OKLCH | oklch(52.8% 0.116 251.3) |
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 #316EAC | 5.30:1 | AA | Lc -81.5 | Fine for body text |
| Black text on #316EAC | 3.95:1 | AA large text | Lc 28.0 | Dividers and decoration only |
| #316EAC text on white | 5.30:1 | AA | Lc 76.1 | Fine for body text |
| #316EAC text on black | 3.95:1 | AA large text | Lc -25.6 | 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
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E3EBF4
oklch(93.7% 0.015 251.2)
-
Step 200
200
#CCDBEC
oklch(88.5% 0.029 251.5)
-
Step 300
300
#A8C4E2
oklch(81% 0.052 250.3)
-
Step 400
400
#79A4D4
oklch(70.6% 0.085 251.8)
-
Step 500
500
#568DC8
oklch(63.1% 0.107 251.4)
-
Step 600
600 (this color)
#316EAC
oklch(52.8% 0.116 251.3)
-
Step 700
700
#2B639C
oklch(49.1% 0.109 251.4)
-
Step 800
800
#25517E
oklch(42.7% 0.09 251.2)
-
Step 900
900
#234365
oklch(37.5% 0.07 251.5)
-
Step 950
950
#15283B
oklch(27.1% 0.044 249.7)
#316EAC 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) | #5272AF | 0.037 |
| Deuteranopia (no green cones) | #4066AB | 0.024 |
| Tritanopia (no blue cones) | #007D85 | 0.089 |
| Achromatopsia (no color) | #6B6B6B | 0.116 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #316EAC
#316EAC
oklch(52.8% 0.116 251.3)
- #935E00
#935E00
oklch(52.7% 0.113 71.4)
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 #316EAC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- French Blue #436BAD ΔE 0.018
- Mid Blue #276AB3 ΔE 0.019
- Flat Blue #3C73A8 ΔE 0.020
- Muted Blue #3B719F ΔE 0.026
- Nice Blue #107AB0 ΔE 0.035
- Ocean Blue #03719C ΔE 0.037
- Windows Blue #3778BF ΔE 0.039
- Dull Blue #49759C ΔE 0.043
Use #316EAC 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.