#316DA0
Closest named color: Muted Blue (#3B719F). oklch(51.9% 0.102 247.1), rgb(49, 109, 160).
Aa
White text reads best on this color (5.48:1).
About this color
#316DA0 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 52%, its chroma 0.102 and its hue 247°. Its hue sits on the cool side of the wheel. The nearest named color is Muted Blue (#3B719F), ΔE 0.016 away. White text reads best on it, at 5.48:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.102) |
| Temperature | cool |
| Nearest name | Muted Blue (#3B719F) |
| Black text | 3.82:1 |
| White text | 5.48:1 |
Values
| HEX | #316DA0 |
| RGB | rgb(49, 109, 160) |
| HSL | hsl(208, 53%, 41%) |
| OKLCH | oklch(51.9% 0.102 247.1) |
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 #316DA0 | 5.48:1 | AA | Lc -82.5 | Fine for body text |
| Black text on #316DA0 | 3.82:1 | AA large text | Lc 26.9 | Dividers and decoration only |
| #316DA0 text on white | 5.48:1 | AA | Lc 77.2 | Fine for body text |
| #316DA0 text on black | 3.82:1 | AA large text | Lc -24.6 | 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 700.
-
Step 50
50
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E3EBF3
oklch(93.6% 0.014 248)
-
Step 200
200
#CBDBEB
oklch(88.4% 0.028 248.1)
-
Step 300
300
#A8C4DF
oklch(80.8% 0.049 247.5)
-
Step 400
400
#78A6D0
oklch(70.8% 0.079 246.7)
-
Step 500
500
#548FC3
oklch(63.2% 0.1 246.8)
-
Step 600
600
#3678B0
oklch(55.6% 0.11 247.1)
-
Step 700
700 (this color)
#316DA0
oklch(51.9% 0.102 247.1)
-
Step 800
800
#23527B
oklch(42.6% 0.085 247.7)
-
Step 900
900
#224463
oklch(37.6% 0.067 248)
-
Step 950
950
#15283A
oklch(27% 0.042 248.4)
#316DA0 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) | #566FA2 | 0.040 |
| Deuteranopia (no green cones) | #47649F | 0.031 |
| Tritanopia (no blue cones) | #00797F | 0.076 |
| Achromatopsia (no color) | #696969 | 0.102 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #316DA0
#316DA0
oklch(51.9% 0.102 247.1)
- #8F5C1B
#8F5C1B
oklch(52% 0.102 67.7)
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 #316DA0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Muted Blue #3B719F ΔE 0.016
- Flat Blue #3C73A8 ΔE 0.023
- Ocean Blue #03719C ΔE 0.024
- French Blue #436BAD ΔE 0.029
- Mid Blue #276AB3 ΔE 0.034
- Sea Blue #047495 ΔE 0.036
- Peacock Blue #016795 ΔE 0.036
- Dull Blue #49759C ΔE 0.037
Use #316DA0 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.