#042341
Closest named color: Oxford Blue (#1B263B). oklch(25.3% 0.067 251.2), rgb(4, 35, 65).
Aa
White text reads best on this color (15.88:1).
About this color
#042341 is a dark, muted blue. In OKLCH its lightness is 25%, its chroma 0.067 and its hue 251°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.032 away. White text reads best on it, at 15.88:1.
| Hue family | Blues |
| Lightness | dark (25%) |
| Chroma | muted (0.067) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.32:1 |
| White text | 15.88:1 |
Values
| HEX | #042341 |
| RGB | rgb(4, 35, 65) |
| HSL | hsl(210, 88%, 14%) |
| OKLCH | oklch(25.3% 0.067 251.2) |
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 #042341 | 15.88:1 | AAA | Lc -105.2 | Preferred for body text |
| Black text on #042341 | 1.32:1 | Fails | Lc 0.0 | Not readable |
| #042341 text on white | 15.88:1 | AAA | Lc 102.6 | Preferred for body text |
| #042341 text on black | 1.32:1 | 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
#F0F6FD
oklch(97.1% 0.011 252.1)
-
Step 100
100
#DFEBF9
oklch(93.5% 0.023 252.2)
-
Step 200
200
#C4DCF6
oklch(88.5% 0.044 250.4)
-
Step 300
300
#9BC5F3
oklch(81% 0.079 251.1)
-
Step 400
400
#61A5ED
oklch(70.7% 0.127 251.3)
-
Step 500
500
#2C8CE7
oklch(63.1% 0.162 251.3)
-
Step 600
600
#0075CE
oklch(55.7% 0.162 251.1)
-
Step 700
700
#0062AE
oklch(49.1% 0.143 251.1)
-
Step 800
800
#005090
oklch(42.7% 0.125 251.1)
-
Step 900
900
#064377
oklch(37.8% 0.105 250.9)
-
Step 950
950 (this color)
#042341
oklch(25.3% 0.067 251.2)
#042341 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) | #142542 | 0.019 |
| Deuteranopia (no green cones) | #092040 | 0.010 |
| Tritanopia (no blue cones) | #002A2E | 0.049 |
| Achromatopsia (no color) | #222222 | 0.067 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #042341
#042341
oklch(25.3% 0.067 251.2)
- #321D00
#321D00
oklch(25.2% 0.054 71.6)
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 #042341, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.032
- Dark #1B2431 ΔE 0.040
- Rich Black #0D1B2A ΔE 0.047
- Navy Blue #001146 ΔE 0.057
- Jet #212529 ΔE 0.058
- Marine #042E60 ΔE 0.063
- Space Cadet #2B2D42 ΔE 0.065
- Gunmetal #293241 ΔE 0.073
Use #042341 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.