#42191A
Closest named color: Chocolate Brown (#411900). oklch(27.6% 0.064 20.7), rgb(66, 25, 26).
Aa
White text reads best on this color (15.15:1).
About this color
#42191A is a dark, muted red. In OKLCH its lightness is 28%, its chroma 0.064 and its hue 21°. Its hue sits on the warm side of the wheel. The nearest named color is Chocolate Brown (#411900), ΔE 0.035 away. White text reads best on it, at 15.15:1.
| Hue family | Reds |
| Lightness | dark (28%) |
| Chroma | muted (0.064) |
| Temperature | warm |
| Nearest name | Chocolate Brown (#411900) |
| Black text | 1.38:1 |
| White text | 15.15:1 |
Values
| HEX | #42191A |
| RGB | rgb(66, 25, 26) |
| HSL | hsl(359, 45%, 18%) |
| OKLCH | oklch(27.6% 0.064 20.7) |
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 #42191A | 15.15:1 | AAA | Lc -104.5 | Preferred for body text |
| Black text on #42191A | 1.38:1 | Fails | Lc 0.0 | Not readable |
| #42191A text on white | 15.15:1 | AAA | Lc 101.7 | Preferred for body text |
| #42191A text on black | 1.38:1 | 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
#FCF3F2
oklch(97.1% 0.01 25.1)
-
Step 100
100
#F8E4E4
oklch(93.5% 0.022 17.6)
-
Step 200
200
#F4CFCD
oklch(88.5% 0.042 21.6)
-
Step 300
300
#EEAEAC
oklch(81% 0.075 20.9)
-
Step 400
400
#E28080
oklch(70.7% 0.121 20.6)
-
Step 500
500
#D75C60
oklch(63.1% 0.155 20.7)
-
Step 600
600
#C23E47
oklch(55.6% 0.168 20.7)
-
Step 700
700
#A72E38
oklch(49% 0.157 20.7)
-
Step 800
800
#88282F
oklch(42.7% 0.13 20.6)
-
Step 900
900
#6D272A
oklch(37.7% 0.1 20.7)
-
Step 950
950 (this color)
#42191A
oklch(27.6% 0.064 20.7)
#42191A 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) | #23211A | 0.068 |
| Deuteranopia (no green cones) | #2D2919 | 0.063 |
| Tritanopia (no blue cones) | #49131A | 0.019 |
| Achromatopsia (no color) | #262626 | 0.064 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #42191A
#42191A
oklch(27.6% 0.064 20.7)
- #002F31
#002F31
oklch(27.7% 0.047 199.3)
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 #42191A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chocolate Brown #411900 ΔE 0.035
- Mahogany #4A0100 ΔE 0.046
- Dark Brown #341C02 ΔE 0.050
- Deep Brown #410200 ΔE 0.050
- Dark Maroon #3C0008 ΔE 0.057
- Dark Plum #3F012C ΔE 0.070
- Jet #212529 ΔE 0.072
- Aubergine #3D0734 ΔE 0.073
Use #42191A 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.