#BC3123
Closest named color: Dull Red (#BB3F3F). oklch(52.8% 0.178 29.9), rgb(188, 49, 35).
Aa
White text reads best on this color (5.83:1).
About this color
#BC3123 is a medium-dark, vivid red. In OKLCH its lightness is 53%, its chroma 0.178 and its hue 30°. Its hue sits on the warm side of the wheel. The nearest named color is Dull Red (#BB3F3F), ΔE 0.030 away. White text reads best on it, at 5.83:1.
| Hue family | Reds |
| Lightness | medium-dark (53%) |
| Chroma | vivid (0.178) |
| Temperature | warm |
| Nearest name | Dull Red (#BB3F3F) |
| Black text | 3.60:1 |
| White text | 5.83:1 |
Values
| HEX | #BC3123 |
| RGB | rgb(188, 49, 35) |
| HSL | hsl(5, 69%, 44%) |
| OKLCH | oklch(52.8% 0.178 29.9) |
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 #BC3123 | 5.83:1 | AA | Lc -83.1 | Fine for body text |
| Black text on #BC3123 | 3.60:1 | AA large text | Lc 26.3 | Dividers and decoration only |
| #BC3123 text on white | 5.83:1 | AA | Lc 77.8 | Fine for body text |
| #BC3123 text on black | 3.60:1 | AA large text | Lc -24.0 | 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
#F9E5E1
oklch(93.7% 0.023 31.1)
-
Step 200
200
#F5CFC8
oklch(88.5% 0.044 30.2)
-
Step 300
300
#F0AEA2
oklch(81% 0.08 30.5)
-
Step 400
400
#E58070
oklch(70.7% 0.128 30.1)
-
Step 500
500
#DB5B4A
oklch(63.2% 0.164 29.9)
-
Step 600
600 (this color)
#BC3123
oklch(52.8% 0.178 29.9)
-
Step 700
700
#AB2C1F
oklch(49.2% 0.166 29.9)
-
Step 800
800
#8B261C
oklch(42.7% 0.138 29.6)
-
Step 900
900
#6F261C
oklch(37.7% 0.106 30.5)
-
Step 950
950
#421711
oklch(27% 0.068 30.2)
#BC3123 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) | #5B5220 | 0.190 |
| Deuteranopia (no green cones) | #7E701C | 0.172 |
| Tritanopia (no blue cones) | #CF002F | 0.050 |
| Achromatopsia (no color) | #656565 | 0.179 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #BC3123
#BC3123
oklch(52.8% 0.178 29.9)
- #007988
#007988
oklch(52.8% 0.091 209.8)
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 #BC3123, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Red #BB3F3F ΔE 0.030
- Sinopia #BB3E03 ΔE 0.031
- Rusty Red #AF2F0D ΔE 0.031
- Firebrick #B22222 ΔE 0.032
- Scarlet #BE0119 ΔE 0.037
- Rufous #AE2012 ΔE 0.041
- Lipstick Red #C0022F ΔE 0.044
- Rust Red #AA2704 ΔE 0.046
Use #BC3123 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.