#D43500
Closest named color: Brick Orange (#C14A09). oklch(57.2% 0.201 34.8), rgb(212, 53, 0).
Aa
White text reads best on this color (4.87:1).
About this color
#D43500 is a medium-dark, vivid red. In OKLCH its lightness is 57%, its chroma 0.201 and its hue 35°. Its hue sits on the warm side of the wheel. The nearest named color is Brick Orange (#C14A09), ΔE 0.044 away. White text reads best on it, at 4.87:1.
| Hue family | Reds |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.201) |
| Temperature | warm |
| Nearest name | Brick Orange (#C14A09) |
| Black text | 4.30:1 |
| White text | 4.87:1 |
Values
| HEX | #D43500 |
| RGB | rgb(212, 53, 0) |
| HSL | hsl(15, 100%, 42%) |
| OKLCH | oklch(57.2% 0.201 34.8) |
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 #D43500 | 4.87:1 | AA | Lc -77.7 | Fine for body text |
| Black text on #D43500 | 4.30:1 | AA large text | Lc 31.9 | Non-text elements, placeholder text |
| #D43500 text on white | 4.87:1 | AA | Lc 72.2 | Content text, not long reading |
| #D43500 text on black | 4.30:1 | AA large text | Lc -29.5 | 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
#FDF3F0
oklch(97.1% 0.012 37.4)
-
Step 100
100
#FBE4DE
oklch(93.6% 0.027 35)
-
Step 200
200
#F8CEC3
oklch(88.5% 0.05 35.1)
-
Step 300
300
#F5AC99
oklch(80.9% 0.091 35.2)
-
Step 400
400
#EC7C60
oklch(70.7% 0.145 35.1)
-
Step 500
500
#E35330
oklch(63.1% 0.186 34.8)
-
Step 600
600 (this color)
#D43500
oklch(57.2% 0.201 34.8)
-
Step 700
700
#AD2900
oklch(49.1% 0.173 34.7)
-
Step 800
800
#8F2000
oklch(42.7% 0.151 34.7)
-
Step 900
900
#74200B
oklch(37.6% 0.121 34.6)
-
Step 950
950
#441509
oklch(27% 0.076 35.3)
#D43500 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) | #685A00 | 0.209 |
| Deuteranopia (no green cones) | #8E7E00 | 0.189 |
| Tritanopia (no blue cones) | #EA002E | 0.060 |
| Achromatopsia (no color) | #717171 | 0.203 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #D43500
#D43500
oklch(57.2% 0.201 34.8)
- #00869D
#00869D
oklch(57.1% 0.101 215.4)
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 #D43500, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brick Orange #C14A09 ΔE 0.044
- Deep Orange #DC4D01 ΔE 0.044
- Tomato Red #EC2D01 ΔE 0.046
- Sinopia #BB3E03 ΔE 0.048
- Burnt Orange #C04E01 ΔE 0.050
- Rust Orange #C45508 ΔE 0.056
- Faded Red #D3494E ΔE 0.056
- Crimson #DC143C ΔE 0.058
Use #D43500 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.