#AA312E
Closest named color: Brown (#A52A2A). oklch(49.7% 0.158 26.2), rgb(170, 49, 46).
Aa
White text reads best on this color (6.58:1).
About this color
#AA312E is a medium-dark, vivid red. In OKLCH its lightness is 50%, its chroma 0.158 and its hue 26°. Its hue sits on the warm side of the wheel. The nearest named color is Brown (#A52A2A), ΔE 0.017 away. White text reads best on it, at 6.58:1.
| Hue family | Reds |
| Lightness | medium-dark (50%) |
| Chroma | vivid (0.158) |
| Temperature | warm |
| Nearest name | Brown (#A52A2A) |
| Black text | 3.18:1 |
| White text | 6.58:1 |
Values
| HEX | #AA312E |
| RGB | rgb(170, 49, 46) |
| HSL | hsl(1, 57%, 42%) |
| OKLCH | oklch(49.7% 0.158 26.2) |
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 #AA312E | 6.58:1 | AA | Lc -86.6 | Fine for body text |
| Black text on #AA312E | 3.18:1 | AA large text | Lc 22.6 | Dividers and decoration only |
| #AA312E text on white | 6.58:1 | AA | Lc 81.5 | Fine for body text |
| #AA312E text on black | 3.18:1 | AA large text | Lc -20.4 | 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 700.
-
Step 50
50
#FCF3F2
oklch(97.1% 0.01 25.1)
-
Step 100
100
#F8E5E2
oklch(93.6% 0.021 28.3)
-
Step 200
200
#F4CFCB
oklch(88.5% 0.042 25.3)
-
Step 300
300
#EEAEA7
oklch(80.9% 0.076 25.9)
-
Step 400
400
#E38178
oklch(70.8% 0.122 26.1)
-
Step 500
500
#D85D55
oklch(63.2% 0.157 26.2)
-
Step 600
600
#C33E3A
oklch(55.6% 0.17 26.1)
-
Step 700
700 (this color)
#AA312E
oklch(49.7% 0.158 26.2)
-
Step 800
800
#882926
oklch(42.7% 0.13 26.1)
-
Step 900
900
#6E2723
oklch(37.8% 0.102 26.3)
-
Step 950
950
#411815
oklch(27.1% 0.065 26.5)
#AA312E 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) | #544C2C | 0.169 |
| Deuteranopia (no green cones) | #72672A | 0.156 |
| Tritanopia (no blue cones) | #BB0432 | 0.048 |
| Achromatopsia (no color) | #5D5D5D | 0.159 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AA312E
#AA312E
oklch(49.7% 0.158 26.2)
- #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 #AA312E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brown #A52A2A ΔE 0.017
- Firebrick #B22222 ΔE 0.022
- Brick #A03623 ΔE 0.025
- Rufous #AE2012 ΔE 0.026
- Rusty Red #AF2F0D ΔE 0.027
- Rust Red #AA2704 ΔE 0.029
- Russet #A13905 ΔE 0.041
- Burnt Red #9F2305 ΔE 0.043
Use #AA312E 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.