#40252B
Closest named color: Space Cadet (#2B2D42). oklch(30.1% 0.042 5.4), rgb(64, 37, 43).
Aa
White text reads best on this color (13.83:1).
About this color
#40252B is a dark, muted red. In OKLCH its lightness is 30%, its chroma 0.042 and its hue 5°. Its hue sits on the warm side of the wheel. The nearest named color is Space Cadet (#2B2D42), ΔE 0.054 away. White text reads best on it, at 13.83:1.
| Hue family | Reds |
| Lightness | dark (30%) |
| Chroma | muted (0.042) |
| Temperature | warm |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.51:1 |
| White text | 13.83:1 |
Values
| HEX | #40252B |
| RGB | rgb(64, 37, 43) |
| HSL | hsl(347, 27%, 20%) |
| OKLCH | oklch(30.1% 0.042 5.4) |
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 #40252B | 13.83:1 | AAA | Lc -103.4 | Preferred for body text |
| Black text on #40252B | 1.51:1 | Fails | Lc 0.0 | Not readable |
| #40252B text on white | 13.83:1 | AAA | Lc 100.3 | Preferred for body text |
| #40252B 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
#FAF4F5
oklch(97.2% 0.007 5.6)
-
Step 100
100
#F3E6E8
oklch(93.6% 0.014 6.7)
-
Step 200
200
#EAD2D6
oklch(88.5% 0.027 6.2)
-
Step 300
300
#DEB4BC
oklch(80.9% 0.05 5.4)
-
Step 400
400
#CC8C99
oklch(70.7% 0.08 6)
-
Step 500
500
#BD6E81
oklch(63.1% 0.102 4.9)
-
Step 600
600
#A8556A
oklch(55.6% 0.111 5.3)
-
Step 700
700
#904558
oklch(49.1% 0.103 5.6)
-
Step 800
800
#753948
oklch(42.6% 0.085 5.5)
-
Step 900
900
#5F323C
oklch(37.8% 0.066 6.5)
-
Step 950
950 (this color)
#40252B
oklch(30.1% 0.042 5.4)
#40252B 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) | #292A2B | 0.046 |
| Deuteranopia (no green cones) | #302F2A | 0.043 |
| Tritanopia (no blue cones) | #442327 | 0.010 |
| Achromatopsia (no color) | #2D2D2D | 0.042 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #40252B
#40252B
oklch(30.1% 0.042 5.4)
- #113531
#113531
oklch(30.2% 0.042 185.3)
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 #40252B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Space Cadet #2B2D42 ΔE 0.054
- Gunmetal #293241 ΔE 0.059
- Chocolate Brown #411900 ΔE 0.060
- Jet #212529 ΔE 0.061
- Onyx #343A40 ΔE 0.066
- Dark Brown #341C02 ΔE 0.068
- Dark #1B2431 ΔE 0.071
- Oxford Blue #1B263B ΔE 0.073
Use #40252B 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.