#B61723
Closest named color: Firebrick (#B22222). oklch(49.8% 0.19 25), rgb(182, 23, 35).
Aa
White text reads best on this color (6.69:1).
About this color
#B61723 is a medium-dark, vivid red. In OKLCH its lightness is 50%, its chroma 0.190 and its hue 25°. Its hue sits on the warm side of the wheel. The nearest named color is Firebrick (#B22222), ΔE 0.012 away. White text reads best on it, at 6.69:1.
| Hue family | Reds |
| Lightness | medium-dark (50%) |
| Chroma | vivid (0.190) |
| Temperature | warm |
| Nearest name | Firebrick (#B22222) |
| Black text | 3.13:1 |
| White text | 6.69:1 |
Values
| HEX | #B61723 |
| RGB | rgb(182, 23, 35) |
| HSL | hsl(355, 78%, 40%) |
| OKLCH | oklch(49.8% 0.19 25) |
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 #B61723 | 6.69:1 | AA | Lc -86.2 | Fine for body text |
| Black text on #B61723 | 3.13:1 | AA large text | Lc 23.0 | Dividers and decoration only |
| #B61723 text on white | 6.69:1 | AA | Lc 81.1 | Fine for body text |
| #B61723 text on black | 3.13:1 | AA large text | Lc -20.8 | 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 700.
-
Step 50
50
#FEF2F1
oklch(97% 0.013 23.2)
-
Step 100
100
#FBE4E1
oklch(93.7% 0.026 26.5)
-
Step 200
200
#F9CDC8
oklch(88.5% 0.05 25.7)
-
Step 300
300
#F6AAA3
oklch(80.9% 0.091 25.1)
-
Step 400
400
#EE7871
oklch(70.7% 0.147 25)
-
Step 500
500
#E54E4C
oklch(63.2% 0.188 24.9)
-
Step 600
600
#D0252E
oklch(55.5% 0.204 25)
-
Step 700
700 (this color)
#B61723
oklch(49.8% 0.19 25)
-
Step 800
800
#92171D
oklch(42.8% 0.157 25.1)
-
Step 900
900
#751D1D
oklch(37.7% 0.122 25.2)
-
Step 950
950
#451312
oklch(27% 0.077 24.9)
#B61723 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) | #4E4621 | 0.209 |
| Deuteranopia (no green cones) | #74681B | 0.190 |
| Tritanopia (no blue cones) | #C9001E | 0.037 |
| Achromatopsia (no color) | #5C5C5C | 0.191 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B61723
#B61723
oklch(49.8% 0.19 25)
- #00707A
#00707A
oklch(49.8% 0.085 205.6)
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 #B61723, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Firebrick #B22222 ΔE 0.012
- Scarlet #BE0119 ΔE 0.017
- Rufous #AE2012 ΔE 0.023
- Lipstick Red #C0022F ΔE 0.025
- Brown #A52A2A ΔE 0.035
- Rose Red #BE013C ΔE 0.036
- Rusty Red #AF2F0D ΔE 0.036
- Rust Red #AA2704 ΔE 0.036
Use #B61723 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.