#613E3F
Closest named color: Purple Brown (#673A3F). oklch(40.5% 0.049 17.6), rgb(97, 62, 63).
Aa
White text reads best on this color (9.25:1).
About this color
#613E3F is a dark, muted red. In OKLCH its lightness is 40%, its chroma 0.049 and its hue 18°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.015 away. White text reads best on it, at 9.25:1.
| Hue family | Reds |
| Lightness | dark (40%) |
| Chroma | muted (0.049) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.26:1 |
| White text | 9.25:1 |
Values
| HEX | #613E3F |
| RGB | rgb(97, 62, 63) |
| HSL | hsl(358, 22%, 31%) |
| OKLCH | oklch(40.5% 0.049 17.6) |
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 #613E3F | 9.25:1 | AAA | Lc -95.6 | Preferred for body text |
| Black text on #613E3F | 2.26:1 | Fails | Lc 12.7 | Not readable |
| #613E3F text on white | 9.25:1 | AAA | Lc 91.2 | Preferred for body text |
| #613E3F text on black | 2.26:1 | Fails | Lc -11.1 | 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 800.
-
Step 50
50
#F8F4F4
oklch(97% 0.004 17.2)
-
Step 100
100
#EFE8E8
oklch(93.6% 0.008 17.3)
-
Step 200
200
#E4D5D5
oklch(88.5% 0.017 17.5)
-
Step 300
300
#D3BABA
oklch(81% 0.029 17.8)
-
Step 400
400
#BC9596
oklch(70.6% 0.047 16.6)
-
Step 500
500
#AA7B7C
oklch(63% 0.059 17.4)
-
Step 600
600
#956465
oklch(55.5% 0.064 18)
-
Step 700
700
#7F5354
oklch(49.1% 0.059 17.9)
-
Step 800
800 (this color)
#613E3F
oklch(40.5% 0.049 17.6)
-
Step 900
900
#54393A
oklch(37.6% 0.039 16.6)
-
Step 950
950
#312222
oklch(27% 0.023 18.7)
#613E3F 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) | #45433F | 0.052 |
| Deuteranopia (no green cones) | #4D4A3E | 0.049 |
| Tritanopia (no blue cones) | #683A3F | 0.017 |
| Achromatopsia (no color) | #474747 | 0.050 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #613E3F
#613E3F
oklch(40.5% 0.049 17.6)
- #245152
#245152
oklch(40.4% 0.049 197.3)
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 #613E3F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.015
- Brownish Purple #76424E ΔE 0.049
- Charcoal Grey #3C4142 ΔE 0.066
- Mud Brown #60460F ΔE 0.071
- Chestnut #742802 ΔE 0.076
- Onyx #343A40 ΔE 0.084
- Dark Slate Gray #2F4F4F ΔE 0.087
- Red Brown #8B2E16 ΔE 0.091
Use #613E3F 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.