#D23521
Closest named color: Faded Red (#D3494E). oklch(57% 0.197 30.9), rgb(210, 53, 33).
Aa
White text reads best on this color (4.91:1).
About this color
#D23521 is a medium-dark, vivid red. In OKLCH its lightness is 57%, its chroma 0.197 and its hue 31°. Its hue sits on the warm side of the wheel. The nearest named color is Faded Red (#D3494E), ΔE 0.046 away. White text reads best on it, at 4.91:1.
| Hue family | Reds |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.197) |
| Temperature | warm |
| Nearest name | Faded Red (#D3494E) |
| Black text | 4.27:1 |
| White text | 4.91:1 |
Values
| HEX | #D23521 |
| RGB | rgb(210, 53, 33) |
| HSL | hsl(7, 73%, 48%) |
| OKLCH | oklch(57% 0.197 30.9) |
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 #D23521 | 4.91:1 | AA | Lc -78.0 | Fine for body text |
| Black text on #D23521 | 4.27:1 | AA large text | Lc 31.5 | Non-text elements, placeholder text |
| #D23521 text on white | 4.91:1 | AA | Lc 72.6 | Content text, not long reading |
| #D23521 text on black | 4.27:1 | AA large text | Lc -29.1 | Dividers and decoration only |
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 600.
-
Step 50
50
#FDF3F1
oklch(97.1% 0.011 31.1)
-
Step 100
100
#FBE4E0
oklch(93.6% 0.026 29.4)
-
Step 200
200
#F8CEC6
oklch(88.5% 0.049 30.7)
-
Step 300
300
#F4AC9E
oklch(80.9% 0.088 31.3)
-
Step 400
400
#EB7C69
oklch(70.7% 0.141 31)
-
Step 500
500
#E2543F
oklch(63.2% 0.181 31)
-
Step 600
600 (this color)
#D23521
oklch(57% 0.197 30.9)
-
Step 700
700
#B11F0C
oklch(49.1% 0.183 30.9)
-
Step 800
800
#901E10
oklch(42.8% 0.152 30.8)
-
Step 900
900
#732115
oklch(37.7% 0.117 31.2)
-
Step 950
950
#44150E
oklch(27% 0.074 30.9)
#D23521 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) | #665A1C | 0.209 |
| Deuteranopia (no green cones) | #8C7D17 | 0.190 |
| Tritanopia (no blue cones) | #E80032 | 0.054 |
| Achromatopsia (no color) | #717171 | 0.198 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #D23521
#D23521
oklch(57% 0.197 30.9)
- #008698
#008698
oklch(56.9% 0.099 211.2)
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 #D23521, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Faded Red #D3494E ΔE 0.046
- Crimson #DC143C ΔE 0.047
- Brick Orange #C14A09 ΔE 0.047
- Sinopia #BB3E03 ΔE 0.049
- Dull Red #BB3F3F ΔE 0.049
- Tomato Red #EC2D01 ΔE 0.050
- Deep Orange #DC4D01 ΔE 0.051
- Cherry #CF0234 ΔE 0.052
Use #D23521 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.