#316AAF
Closest named color: Mid Blue (#276AB3). oklch(52.1% 0.125 254.8), rgb(49, 106, 175).
Aa
White text reads best on this color (5.51:1).
About this color
#316AAF is a medium-dark, moderately saturated blue. In OKLCH its lightness is 52%, its chroma 0.125 and its hue 255°. Its hue sits on the cool side of the wheel. The nearest named color is Mid Blue (#276AB3), ΔE 0.009 away. White text reads best on it, at 5.51:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.125) |
| Temperature | cool |
| Nearest name | Mid Blue (#276AB3) |
| Black text | 3.81:1 |
| White text | 5.51:1 |
Values
| HEX | #316AAF |
| RGB | rgb(49, 106, 175) |
| HSL | hsl(213, 56%, 44%) |
| OKLCH | oklch(52.1% 0.125 254.8) |
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 #316AAF | 5.51:1 | AA | Lc -82.5 | Fine for body text |
| Black text on #316AAF | 3.81:1 | AA large text | Lc 26.9 | Dividers and decoration only |
| #316AAF text on white | 5.51:1 | AA | Lc 77.2 | Fine for body text |
| #316AAF text on black | 3.81:1 | AA large text | Lc -24.5 | 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
#E2EBF6
oklch(93.7% 0.018 253.3)
-
Step 200
200
#CBDBF0
oklch(88.6% 0.034 255.2)
-
Step 300
300
#A7C3E8
oklch(80.9% 0.061 255.5)
-
Step 400
400
#77A3DC
oklch(70.6% 0.097 255.2)
-
Step 500
500
#538BD2
oklch(63% 0.123 255.1)
-
Step 600
600
#3674C0
oklch(55.6% 0.135 255)
-
Step 700
700 (this color)
#316AAF
oklch(52.1% 0.125 254.8)
-
Step 800
800
#235086
oklch(42.8% 0.103 254.6)
-
Step 900
900
#21426B
oklch(37.6% 0.081 254.9)
-
Step 950
950
#14273F
oklch(27% 0.052 255)
#316AAF 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) | #4A6FB2 | 0.030 |
| Deuteranopia (no green cones) | #3763AE | 0.019 |
| Tritanopia (no blue cones) | #007A84 | 0.096 |
| Achromatopsia (no color) | #696969 | 0.125 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #316AAF
#316AAF
oklch(52.1% 0.125 254.8)
- #8E5E00
#8E5E00
oklch(52.1% 0.11 74.4)
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 #316AAF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mid Blue #276AB3 ΔE 0.009
- French Blue #436BAD ΔE 0.018
- Flat Blue #3C73A8 ΔE 0.033
- Muted Blue #3B719F ΔE 0.037
- Windows Blue #3778BF ΔE 0.044
- Ocean Blue #03719C ΔE 0.045
- Nice Blue #107AB0 ΔE 0.046
- Dusky Blue #475F94 ΔE 0.049
Use #316AAF 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.