#316BAB
Closest named color: Mid Blue (#276AB3). oklch(52.1% 0.118 253), rgb(49, 107, 171).
Aa
White text reads best on this color (5.49:1).
About this color
#316BAB is a medium-dark, moderately saturated blue. In OKLCH its lightness is 52%, its chroma 0.118 and its hue 253°. Its hue sits on the cool side of the wheel. The nearest named color is Mid Blue (#276AB3), ΔE 0.015 away. White text reads best on it, at 5.49:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.118) |
| Temperature | cool |
| Nearest name | Mid Blue (#276AB3) |
| Black text | 3.82:1 |
| White text | 5.49:1 |
Values
| HEX | #316BAB |
| RGB | rgb(49, 107, 171) |
| HSL | hsl(211, 55%, 43%) |
| OKLCH | oklch(52.1% 0.118 253) |
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 #316BAB | 5.49:1 | AA | Lc -82.5 | Fine for body text |
| Black text on #316BAB | 3.82:1 | AA large text | Lc 26.9 | Dividers and decoration only |
| #316BAB text on white | 5.49:1 | AA | Lc 77.1 | Fine for body text |
| #316BAB 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
#F2F6FB
oklch(97.2% 0.008 253.9)
-
Step 100
100
#E2EBF5
oklch(93.6% 0.017 250.8)
-
Step 200
200
#CBDBEE
oklch(88.5% 0.031 252.7)
-
Step 300
300
#A7C3E5
oklch(80.8% 0.057 253.4)
-
Step 400
400
#77A4D9
oklch(70.7% 0.092 253.1)
-
Step 500
500
#538CCE
oklch(63% 0.117 253.2)
-
Step 600
600
#3675BB
oklch(55.5% 0.127 253.1)
-
Step 700
700 (this color)
#316BAB
oklch(52.1% 0.118 253)
-
Step 800
800
#235083
oklch(42.6% 0.098 253.5)
-
Step 900
900
#214369
oklch(37.7% 0.077 252.8)
-
Step 950
950
#14273D
oklch(26.8% 0.048 253.2)
#316BAB 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) | #4E6FAE | 0.033 |
| Deuteranopia (no green cones) | #3C64AA | 0.020 |
| Tritanopia (no blue cones) | #007A83 | 0.091 |
| Achromatopsia (no color) | #696969 | 0.118 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #316BAB
#316BAB
oklch(52.1% 0.118 253)
- #8F5D00
#8F5D00
oklch(52% 0.111 72.9)
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 #316BAB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mid Blue #276AB3 ΔE 0.015
- French Blue #436BAD ΔE 0.017
- Flat Blue #3C73A8 ΔE 0.028
- Muted Blue #3B719F ΔE 0.030
- Ocean Blue #03719C ΔE 0.039
- Nice Blue #107AB0 ΔE 0.042
- Windows Blue #3778BF ΔE 0.045
- Peacock Blue #016795 ΔE 0.046
Use #316BAB 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.