#C13F15
Closest named color: Sinopia (#BB3E03). oklch(55% 0.173 36.6), rgb(193, 63, 21).
Aa
White text reads best on this color (5.26:1).
About this color
#C13F15 is a medium-dark, vivid red. In OKLCH its lightness is 55%, its chroma 0.173 and its hue 37°. Its hue sits on the warm side of the wheel. The nearest named color is Sinopia (#BB3E03), ΔE 0.015 away. White text reads best on it, at 5.26:1.
| Hue family | Reds |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.173) |
| Temperature | warm |
| Nearest name | Sinopia (#BB3E03) |
| Black text | 3.98:1 |
| White text | 5.26:1 |
Values
| HEX | #C13F15 |
| RGB | rgb(193, 63, 21) |
| HSL | hsl(15, 80%, 42%) |
| OKLCH | oklch(55% 0.173 36.6) |
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 #C13F15 | 5.26:1 | AA | Lc -80.4 | Fine for body text |
| Black text on #C13F15 | 3.98:1 | AA large text | Lc 29.0 | Dividers and decoration only |
| #C13F15 text on white | 5.26:1 | AA | Lc 75.0 | Fine for body text |
| #C13F15 text on black | 3.98:1 | AA large text | Lc -26.7 | 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
#FCF3F1
oklch(97.1% 0.01 32.5)
-
Step 100
100
#F8E5DF
oklch(93.5% 0.022 38.3)
-
Step 200
200
#F4D0C5
oklch(88.5% 0.043 37.7)
-
Step 300
300
#EEAF9D
oklch(80.8% 0.079 36.6)
-
Step 400
400
#E38368
oklch(70.8% 0.125 36.6)
-
Step 500
500
#D85F3D
oklch(63.1% 0.16 36.5)
-
Step 600
600 (this color)
#C13F15
oklch(55% 0.173 36.6)
-
Step 700
700
#A83107
oklch(49% 0.162 36.5)
-
Step 800
800
#882B0D
oklch(42.7% 0.133 36.8)
-
Step 900
900
#6E2814
oklch(37.7% 0.105 36.5)
-
Step 950
950
#41190D
oklch(27.1% 0.066 37.3)
#C13F15 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) | #66590B | 0.176 |
| Deuteranopia (no green cones) | #86770A | 0.161 |
| Tritanopia (no blue cones) | #D51138 | 0.070 |
| Achromatopsia (no color) | #6C6C6C | 0.174 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C13F15
#C13F15
oklch(55% 0.173 36.6)
- #007F96
#007F96
oklch(55% 0.098 216.3)
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 #C13F15, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sinopia #BB3E03 ΔE 0.015
- Brick Orange #C14A09 ΔE 0.022
- Burnt Orange #C04E01 ΔE 0.031
- Dull Red #BB3F3F ΔE 0.039
- Burnt Siena #B75203 ΔE 0.041
- Rust Orange #C45508 ΔE 0.045
- Cinnamon #AC4F06 ΔE 0.049
- Rusty Red #AF2F0D ΔE 0.049
Use #C13F15 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.