#013255
Closest named color: Marine (#042E60). oklch(30.8% 0.079 246.6), rgb(1, 50, 85).
Aa
White text reads best on this color (13.21:1).
About this color
#013255 is a dark, moderately saturated blue. In OKLCH its lightness is 31%, its chroma 0.079 and its hue 247°. Its hue sits on the cool side of the wheel. The nearest named color is Marine (#042E60), ΔE 0.025 away. White text reads best on it, at 13.21:1.
| Hue family | Blues |
| Lightness | dark (31%) |
| Chroma | moderately saturated (0.079) |
| Temperature | cool |
| Nearest name | Marine (#042E60) |
| Black text | 1.58:1 |
| White text | 13.21:1 |
Values
| HEX | #013255 |
| RGB | rgb(1, 50, 85) |
| HSL | hsl(205, 98%, 17%) |
| OKLCH | oklch(30.8% 0.079 246.6) |
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 #013255 | 13.21:1 | AAA | Lc -102.4 | Preferred for body text |
| Black text on #013255 | 1.58:1 | Fails | Lc 0.0 | Not readable |
| #013255 text on white | 13.21:1 | AAA | Lc 99.1 | Preferred for body text |
| #013255 text on black | 1.58:1 | 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
#EFF6FE
oklch(97% 0.013 251.6)
-
Step 100
100
#DCECFB
oklch(93.6% 0.027 246.3)
-
Step 200
200
#BEDDFA
oklch(88.4% 0.052 246.6)
-
Step 300
300
#8EC7FA
oklch(80.9% 0.094 246.3)
-
Step 400
400
#43A7F8
oklch(70.7% 0.15 246.7)
-
Step 500
500
#008FE6
oklch(63.1% 0.164 246.6)
-
Step 600
600
#0078C2
oklch(55.6% 0.145 246.5)
-
Step 700
700
#0065A4
oklch(49.2% 0.127 246.3)
-
Step 800
800
#005288
oklch(42.7% 0.112 246.9)
-
Step 900
900
#004472
oklch(37.6% 0.099 246.8)
-
Step 950
950 (this color)
#013255
oklch(30.8% 0.079 246.6)
#013255 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) | #213456 | 0.030 |
| Deuteranopia (no green cones) | #142D54 | 0.019 |
| Tritanopia (no blue cones) | #003B3F | 0.057 |
| Achromatopsia (no color) | #303030 | 0.079 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #013255
#013255
oklch(30.8% 0.079 246.6)
- #462800
#462800
oklch(30.8% 0.068 67.6)
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 #013255, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine #042E60 ΔE 0.025
- Prussian Blue #1D3557 ΔE 0.027
- Midnight Green #073B4C ΔE 0.038
- Marine Blue #01386A ΔE 0.040
- Dark Blue Grey #1F3B4D ΔE 0.046
- Gunmetal #293241 ΔE 0.051
- Space Cadet #2B2D42 ΔE 0.052
- Oxford Blue #1B263B ΔE 0.056
Use #013255 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.