#10314B
Closest named color: Prussian Blue (#1D3557). oklch(30.3% 0.061 245.6), rgb(16, 49, 75).
Aa
White text reads best on this color (13.43:1).
About this color
#10314B is a dark, muted blue. In OKLCH its lightness is 30%, its chroma 0.061 and its hue 246°. Its hue sits on the cool side of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.029 away. White text reads best on it, at 13.43:1.
| Hue family | Blues |
| Lightness | dark (30%) |
| Chroma | muted (0.061) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.56:1 |
| White text | 13.43:1 |
Values
| HEX | #10314B |
| RGB | rgb(16, 49, 75) |
| HSL | hsl(206, 65%, 18%) |
| OKLCH | oklch(30.3% 0.061 245.6) |
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 #10314B | 13.43:1 | AAA | Lc -102.9 | Preferred for body text |
| Black text on #10314B | 1.56:1 | Fails | Lc 0.0 | Not readable |
| #10314B text on white | 13.43:1 | AAA | Lc 99.7 | Preferred for body text |
| #10314B text on black | 1.56:1 | Fails | Lc 0.0 | Not readable |
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 950.
-
Step 50
50
#F0F6FC
oklch(97% 0.01 247.9)
-
Step 100
100
#DFECF7
oklch(93.7% 0.02 243.4)
-
Step 200
200
#C4DCF2
oklch(88.4% 0.04 245.9)
-
Step 300
300
#9AC6ED
oklch(80.9% 0.072 245.6)
-
Step 400
400
#5FA7E4
oklch(70.7% 0.115 246)
-
Step 500
500
#2590DC
oklch(63.2% 0.147 245.5)
-
Step 600
600
#0078C0
oklch(55.5% 0.142 245.8)
-
Step 700
700
#0065A2
oklch(49% 0.125 245.5)
-
Step 800
800
#005386
oklch(42.8% 0.108 245.3)
-
Step 900
900
#014571
oklch(37.8% 0.096 245.7)
-
Step 950
950 (this color)
#10314B
oklch(30.3% 0.061 245.6)
#10314B 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) | #25324C | 0.025 |
| Deuteranopia (no green cones) | #1D2C4B | 0.020 |
| Tritanopia (no blue cones) | #00373A | 0.044 |
| Achromatopsia (no color) | #2F2F2F | 0.061 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #10314B
#10314B
oklch(30.3% 0.061 245.6)
- #432707
#432707
oklch(30.2% 0.061 64.7)
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 #10314B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.029
- Midnight Green #073B4C ΔE 0.033
- Gunmetal #293241 ΔE 0.035
- Space Cadet #2B2D42 ΔE 0.036
- Dark Blue Grey #1F3B4D ΔE 0.039
- Oxford Blue #1B263B ΔE 0.041
- Marine #042E60 ΔE 0.041
- Marine Blue #01386A ΔE 0.056
Use #10314B 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.