#013045
Closest named color: Oxford Blue (#1B263B). oklch(29.2% 0.06 234.2), rgb(1, 48, 69).
Aa
White text reads best on this color (13.90:1).
About this color
#013045 is a dark, muted blue. In OKLCH its lightness is 29%, its chroma 0.060 and its hue 234°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.038 away. White text reads best on it, at 13.90:1.
| Hue family | Blues |
| Lightness | dark (29%) |
| Chroma | muted (0.060) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.51:1 |
| White text | 13.90:1 |
Values
| HEX | #013045 |
| RGB | rgb(1, 48, 69) |
| HSL | hsl(199, 97%, 14%) |
| OKLCH | oklch(29.2% 0.06 234.2) |
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 #013045 | 13.90:1 | AAA | Lc -103.3 | Preferred for body text |
| Black text on #013045 | 1.51:1 | Fails | Lc 0.0 | Not readable |
| #013045 text on white | 13.90:1 | AAA | Lc 100.2 | Preferred for body text |
| #013045 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
#F0F7FB
oklch(97.2% 0.009 232.4)
-
Step 100
100
#DDEDF6
oklch(93.7% 0.021 232.1)
-
Step 200
200
#C1DEF0
oklch(88.5% 0.04 235.2)
-
Step 300
300
#93C9E8
oklch(80.9% 0.071 234)
-
Step 400
400
#4DACDD
oklch(70.8% 0.114 234.2)
-
Step 500
500
#0095CD
oklch(63.1% 0.132 234.2)
-
Step 600
600
#007DAD
oklch(55.6% 0.117 234.3)
-
Step 700
700
#006992
oklch(49.1% 0.103 234.3)
-
Step 800
800
#005678
oklch(42.7% 0.089 233.9)
-
Step 900
900
#004865
oklch(37.8% 0.079 233.7)
-
Step 950
950 (this color)
#013045
oklch(29.2% 0.06 234.2)
#013045 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) | #263046 | 0.038 |
| Deuteranopia (no green cones) | #1D2A45 | 0.030 |
| Tritanopia (no blue cones) | #003637 | 0.038 |
| Achromatopsia (no color) | #2C2C2C | 0.060 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #013045
#013045
oklch(29.2% 0.06 234.2)
- #42220A
#42220A
oklch(29% 0.06 54.2)
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 #013045, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.038
- Midnight Green #073B4C ΔE 0.039
- Gunmetal #293241 ΔE 0.043
- Prussian Blue #1D3557 ΔE 0.045
- Space Cadet #2B2D42 ΔE 0.045
- Dark Blue Grey #1F3B4D ΔE 0.049
- Dark #1B2431 ΔE 0.050
- Marine #042E60 ΔE 0.051
Use #013045 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.