#603E45
Closest named color: Purple Brown (#673A3F). oklch(40.5% 0.049 6), rgb(96, 62, 69).
Aa
White text reads best on this color (9.24:1).
About this color
#603E45 is a dark, muted red. In OKLCH its lightness is 41%, its chroma 0.049 and its hue 6°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.017 away. White text reads best on it, at 9.24:1.
| Hue family | Reds |
| Lightness | dark (41%) |
| Chroma | muted (0.049) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.27:1 |
| White text | 9.24:1 |
Values
| HEX | #603E45 |
| RGB | rgb(96, 62, 69) |
| HSL | hsl(348, 22%, 31%) |
| OKLCH | oklch(40.5% 0.049 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 #603E45 | 9.24:1 | AAA | Lc -95.6 | Preferred for body text |
| Black text on #603E45 | 2.27:1 | Fails | Lc 12.7 | Not readable |
| #603E45 text on white | 9.24:1 | AAA | Lc 91.2 | Preferred for body text |
| #603E45 text on black | 2.27:1 | 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
#F8F4F5
oklch(97.1% 0.004 360)
-
Step 100
100
#EFE8E9
oklch(93.7% 0.008 7.3)
-
Step 200
200
#E3D5D7
oklch(88.5% 0.016 7.5)
-
Step 300
300
#D2B9BE
oklch(80.8% 0.029 4.1)
-
Step 400
400
#BB959C
oklch(70.7% 0.046 6)
-
Step 500
500
#A97B84
oklch(63.1% 0.059 5.9)
-
Step 600
600
#94646E
oklch(55.7% 0.063 5.7)
-
Step 700
700
#7E535B
oklch(49.2% 0.058 7.2)
-
Step 800
800 (this color)
#603E45
oklch(40.5% 0.049 6)
-
Step 900
900
#53393E
oklch(37.6% 0.038 6.3)
-
Step 950
950
#312225
oklch(27.1% 0.024 5.5)
#603E45 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) | #434445 | 0.053 |
| Deuteranopia (no green cones) | #4B4A44 | 0.050 |
| Tritanopia (no blue cones) | #663B40 | 0.014 |
| Achromatopsia (no color) | #474747 | 0.049 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #603E45
#603E45
oklch(40.5% 0.049 6)
- #27524D
#27524D
oklch(40.6% 0.049 185.6)
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 #603E45, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.017
- Brownish Purple #76424E ΔE 0.047
- Charcoal Grey #3C4142 ΔE 0.065
- Mud Brown #60460F ΔE 0.080
- Onyx #343A40 ΔE 0.082
- Chestnut #742802 ΔE 0.083
- Dark Slate Gray #2F4F4F ΔE 0.086
- Dusty Grape #545775 ΔE 0.090
Use #603E45 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.