#503A45
Closest named color: Charcoal Grey (#3C4142). oklch(37.7% 0.035 347.5), rgb(80, 58, 69).
Aa
White text reads best on this color (10.33:1).
About this color
#503A45 is a dark, muted red. In OKLCH its lightness is 38%, its chroma 0.035 and its hue 347°. Its hue sits on the warm side of the wheel. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.041 away. White text reads best on it, at 10.33:1.
| Hue family | Reds |
| Lightness | dark (38%) |
| Chroma | muted (0.035) |
| Temperature | warm |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 2.03:1 |
| White text | 10.33:1 |
Values
| HEX | #503A45 |
| RGB | rgb(80, 58, 69) |
| HSL | hsl(330, 16%, 27%) |
| OKLCH | oklch(37.7% 0.035 347.5) |
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 #503A45 | 10.33:1 | AAA | Lc -98.0 | Preferred for body text |
| Black text on #503A45 | 2.03:1 | Fails | Lc 10.0 | Not readable |
| #503A45 text on white | 10.33:1 | AAA | Lc 94.0 | Preferred for body text |
| #503A45 text on black | 2.03:1 | Fails | Lc -8.6 | 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 900.
-
Step 50
50
#F7F4F6
oklch(97% 0.004 337.4)
-
Step 100
100
#EEE8EB
oklch(93.7% 0.008 345.4)
-
Step 200
200
#E1D5DB
oklch(88.4% 0.015 345.6)
-
Step 300
300
#CEBAC4
oklch(80.9% 0.026 346)
-
Step 400
400
#B696A5
oklch(70.7% 0.043 348.4)
-
Step 500
500
#A37C90
oklch(63% 0.056 346.6)
-
Step 600
600
#8E657A
oklch(55.6% 0.06 347.1)
-
Step 700
700
#785466
oklch(49% 0.054 347.9)
-
Step 800
800
#624554
oklch(42.7% 0.046 346.8)
-
Step 900
900 (this color)
#503A45
oklch(37.7% 0.035 347.5)
-
Step 950
950
#2F2228
oklch(27% 0.022 349.3)
#503A45 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) | #3C3E45 | 0.036 |
| Deuteranopia (no green cones) | #414244 | 0.035 |
| Tritanopia (no blue cones) | #533A3E | 0.013 |
| Achromatopsia (no color) | #404040 | 0.036 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #503A45
#503A45
oklch(37.7% 0.035 347.5)
- #2F483E
#2F483E
oklch(37.8% 0.035 167.6)
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 #503A45, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.041
- Purple Brown #673A3F ΔE 0.045
- Onyx #343A40 ΔE 0.051
- Dark Grey Blue #29465B ΔE 0.069
- Charcoal #264653 ΔE 0.069
- Dark Slate Gray #2F4F4F ΔE 0.076
- Gunmetal #293241 ΔE 0.076
- Dark Blue Grey #1F3B4D ΔE 0.077
Use #503A45 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.