#DD643A
Closest named color: Terracota (#CB6843). oklch(64.5% 0.162 39.1), rgb(221, 100, 58).
Aa
Black text reads best on this color (5.95:1).
About this color
#DD643A is a medium-light, vivid red. In OKLCH its lightness is 65%, its chroma 0.162 and its hue 39°. Its hue sits on the warm side of the wheel. The nearest named color is Terracota (#CB6843), ΔE 0.032 away. Black text reads best on it, at 5.95:1.
| Hue family | Reds |
| Lightness | medium-light (65%) |
| Chroma | vivid (0.162) |
| Temperature | warm |
| Nearest name | Terracota (#CB6843) |
| Black text | 5.95:1 |
| White text | 3.52:1 |
Values
| HEX | #DD643A |
| RGB | rgb(221, 100, 58) |
| HSL | hsl(15, 71%, 55%) |
| OKLCH | oklch(64.5% 0.162 39.1) |
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 #DD643A | 3.52:1 | AA large text | Lc -67.6 | Content text, not long reading |
| Black text on #DD643A | 5.95:1 | AA | Lc 41.9 | Non-text elements, placeholder text |
| #DD643A text on white | 3.52:1 | AA large text | Lc 62.1 | Content text, not long reading |
| #DD643A text on black | 5.95:1 | AA | Lc -39.5 | Non-text elements, placeholder text |
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 500.
-
Step 50
50
#FCF3F0
oklch(97% 0.011 39.4)
-
Step 100
100
#F8E5DF
oklch(93.5% 0.022 38.3)
-
Step 200
200
#F4D0C4
oklch(88.5% 0.044 39.3)
-
Step 300
300
#EEB09B
oklch(81% 0.079 39.5)
-
Step 400
400
#E38363
oklch(70.7% 0.127 39.1)
-
Step 500
500 (this color)
#DD643A
oklch(64.5% 0.162 39.1)
-
Step 600
600
#C44103
oklch(55.7% 0.177 39.1)
-
Step 700
700
#A63500
oklch(49.1% 0.157 39.1)
-
Step 800
800
#892B01
oklch(42.8% 0.136 39.2)
-
Step 900
900
#6E280F
oklch(37.6% 0.106 38.8)
-
Step 950
950
#41190B
oklch(27.1% 0.067 39.3)
#DD643A 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) | #857835 | 0.158 |
| Deuteranopia (no green cones) | #A39337 | 0.145 |
| Tritanopia (no blue cones) | #F24A5B | 0.075 |
| Achromatopsia (no color) | #888888 | 0.163 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #DD643A
#DD643A
oklch(64.5% 0.162 39.1)
- #009EBE
#009EBE
oklch(64.6% 0.117 219)
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 #DD643A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Terracota #CB6843 ΔE 0.032
- Chocolate #D2691E ΔE 0.033
- Terracotta #CA6641 ΔE 0.034
- Burnt Sienna #E76F51 ΔE 0.035
- Terra Cotta #C9643B ΔE 0.037
- Deep Orange #DC4D01 ΔE 0.045
- Pale Red #D9544D ΔE 0.045
- Pastel Red #DB5856 ΔE 0.046
Use #DD643A 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.