#012F4E
Closest named color: Marine (#042E60). oklch(29.5% 0.073 244.8), rgb(1, 47, 78).
Aa
White text reads best on this color (13.83:1).
About this color
#012F4E is a dark, moderately saturated blue. In OKLCH its lightness is 29%, its chroma 0.073 and its hue 245°. Its hue sits on the cool side of the wheel. The nearest named color is Marine (#042E60), ΔE 0.034 away. White text reads best on it, at 13.83:1.
| Hue family | Blues |
| Lightness | dark (29%) |
| Chroma | moderately saturated (0.073) |
| Temperature | cool |
| Nearest name | Marine (#042E60) |
| Black text | 1.51:1 |
| White text | 13.83:1 |
Values
| HEX | #012F4E |
| RGB | rgb(1, 47, 78) |
| HSL | hsl(204, 97%, 15%) |
| OKLCH | oklch(29.5% 0.073 244.8) |
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 #012F4E | 13.83:1 | AAA | Lc -103.2 | Preferred for body text |
| Black text on #012F4E | 1.51:1 | Fails | Lc 0.0 | Not readable |
| #012F4E text on white | 13.83:1 | AAA | Lc 100.1 | Preferred for body text |
| #012F4E text on black | 1.51:1 | 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
#EFF6FD
oklch(97% 0.012 248)
-
Step 100
100
#DDECFA
oklch(93.6% 0.025 246.2)
-
Step 200
200
#C0DDF7
oklch(88.5% 0.047 245.4)
-
Step 300
300
#91C7F5
oklch(80.9% 0.086 244.9)
-
Step 400
400
#4AA8F0
oklch(70.7% 0.138 244.8)
-
Step 500
500
#0090E2
oklch(63.1% 0.159 245)
-
Step 600
600
#0079BE
oklch(55.6% 0.139 244.6)
-
Step 700
700
#0065A1
oklch(49% 0.124 245.1)
-
Step 800
800
#005385
oklch(42.7% 0.107 244.8)
-
Step 900
900
#004570
oklch(37.7% 0.095 244.9)
-
Step 950
950 (this color)
#012F4E
oklch(29.5% 0.073 244.8)
#012F4E 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) | #20304F | 0.029 |
| Deuteranopia (no green cones) | #142A4D | 0.020 |
| Tritanopia (no blue cones) | #00373A | 0.052 |
| Achromatopsia (no color) | #2D2D2D | 0.073 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #012F4E
#012F4E
oklch(29.5% 0.073 244.8)
- #432400
#432400
oklch(29.5% 0.067 64.1)
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 #012F4E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine #042E60 ΔE 0.034
- Prussian Blue #1D3557 ΔE 0.037
- Midnight Green #073B4C ΔE 0.043
- Oxford Blue #1B263B ΔE 0.043
- Space Cadet #2B2D42 ΔE 0.048
- Gunmetal #293241 ΔE 0.049
- Dark Blue Grey #1F3B4D ΔE 0.052
- Marine Blue #01386A ΔE 0.054
Use #012F4E 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.