#01314F
Closest named color: Prussian Blue (#1D3557). oklch(30.1% 0.072 243.2), rgb(1, 49, 79).
Aa
White text reads best on this color (13.51:1).
About this color
#01314F is a dark, moderately saturated blue. In OKLCH its lightness is 30%, its chroma 0.072 and its hue 243°. Its hue sits on the cool side of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.032 away. White text reads best on it, at 13.51:1.
| Hue family | Blues |
| Lightness | dark (30%) |
| Chroma | moderately saturated (0.072) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.55:1 |
| White text | 13.51:1 |
Values
| HEX | #01314F |
| RGB | rgb(1, 49, 79) |
| HSL | hsl(203, 98%, 16%) |
| OKLCH | oklch(30.1% 0.072 243.2) |
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 #01314F | 13.51:1 | AAA | Lc -102.8 | Preferred for body text |
| Black text on #01314F | 1.55:1 | Fails | Lc 0.0 | Not readable |
| #01314F text on white | 13.51:1 | AAA | Lc 99.6 | Preferred for body text |
| #01314F text on black | 1.55:1 | 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
#EFF7FD
oklch(97.2% 0.012 239.9)
-
Step 100
100
#DCECF9
oklch(93.5% 0.025 242.3)
-
Step 200
200
#BFDEF7
oklch(88.6% 0.048 242.5)
-
Step 300
300
#90C8F4
oklch(81% 0.085 242.7)
-
Step 400
400
#47A9EE
oklch(70.7% 0.136 242.9)
-
Step 500
500
#0091DE
oklch(63.1% 0.153 243.2)
-
Step 600
600
#007ABB
oklch(55.7% 0.134 242.9)
-
Step 700
700
#00669E
oklch(49% 0.119 243.2)
-
Step 800
800
#005483
oklch(42.8% 0.104 243)
-
Step 900
900
#00456E
oklch(37.6% 0.092 243.7)
-
Step 950
950 (this color)
#01314F
oklch(30.1% 0.072 243.2)
#01314F 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) | #223250 | 0.031 |
| Deuteranopia (no green cones) | #172B4E | 0.023 |
| Tritanopia (no blue cones) | #00383C | 0.048 |
| Achromatopsia (no color) | #2E2E2E | 0.072 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #01314F
#01314F
oklch(30.1% 0.072 243.2)
- #452500
#452500
oklch(30% 0.068 63.7)
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 #01314F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.032
- Marine #042E60 ΔE 0.034
- Midnight Green #073B4C ΔE 0.037
- Dark Blue Grey #1F3B4D ΔE 0.046
- Gunmetal #293241 ΔE 0.047
- Oxford Blue #1B263B ΔE 0.047
- Space Cadet #2B2D42 ΔE 0.047
- Marine Blue #01386A ΔE 0.050
Use #01314F 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.