#CB2906
Closest named color: Sinopia (#BB3E03). oklch(54.6% 0.201 32.5), rgb(203, 41, 6).
Aa
White text reads best on this color (5.44:1).
About this color
#CB2906 is a medium-dark, vivid red. In OKLCH its lightness is 55%, its chroma 0.201 and its hue 32°. Its hue sits on the warm side of the wheel. The nearest named color is Sinopia (#BB3E03), ΔE 0.038 away. White text reads best on it, at 5.44:1.
| Hue family | Reds |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.201) |
| Temperature | warm |
| Nearest name | Sinopia (#BB3E03) |
| Black text | 3.85:1 |
| White text | 5.44:1 |
Values
| HEX | #CB2906 |
| RGB | rgb(203, 41, 6) |
| HSL | hsl(11, 94%, 41%) |
| OKLCH | oklch(54.6% 0.201 32.5) |
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 #CB2906 | 5.44:1 | AA | Lc -80.7 | Fine for body text |
| Black text on #CB2906 | 3.85:1 | AA large text | Lc 28.7 | Dividers and decoration only |
| #CB2906 text on white | 5.44:1 | AA | Lc 75.4 | Fine for body text |
| #CB2906 text on black | 3.85:1 | AA large text | Lc -26.4 | 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
#FBE4DF
oklch(93.6% 0.026 32.2)
-
Step 200
200
#F9CEC4
oklch(88.6% 0.051 33.3)
-
Step 300
300
#F5AB9C
oklch(80.8% 0.09 31.8)
-
Step 400
400
#EC7B65
oklch(70.6% 0.144 32.3)
-
Step 500
500
#E35238
oklch(63.1% 0.185 32.4)
-
Step 600
600 (this color)
#CB2906
oklch(54.6% 0.201 32.5)
-
Step 700
700
#B11F00
oklch(49.1% 0.184 32.4)
-
Step 800
800
#911C05
oklch(42.7% 0.155 32.5)
-
Step 900
900
#742011
oklch(37.7% 0.12 32.5)
-
Step 950
950
#44140C
oklch(26.9% 0.076 31.8)
#CB2906 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) | #5F5300 | 0.214 |
| Deuteranopia (no green cones) | #867600 | 0.190 |
| Tritanopia (no blue cones) | #E00025 | 0.049 |
| Achromatopsia (no color) | #6A6A6A | 0.202 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #CB2906
#CB2906
oklch(54.6% 0.201 32.5)
- #007F91
#007F91
oklch(54.7% 0.095 211.9)
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 #CB2906, closest first.
No curated palette has a color within ΔE 0.04 of #CB2906.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sinopia #BB3E03 ΔE 0.038
- Cherry #CF0234 ΔE 0.047
- Scarlet #BE0119 ΔE 0.048
- Dull Red #BB3F3F ΔE 0.049
- Brick Orange #C14A09 ΔE 0.050
- Lipstick Red #C0022F ΔE 0.055
- Rusty Red #AF2F0D ΔE 0.055
- Crimson #DC143C ΔE 0.056
Use #CB2906 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.