#E23823
Closest named color: Tomato Red (#EC2D01). oklch(60.1% 0.209 30.8), rgb(226, 56, 35).
Aa
Black text reads best on this color (4.82:1).
About this color
#E23823 is a medium-dark, vivid red. In OKLCH its lightness is 60%, its chroma 0.209 and its hue 31°. Its hue sits on the warm side of the wheel. The nearest named color is Tomato Red (#EC2D01), ΔE 0.021 away. Black text reads best on it, at 4.82:1.
| Hue family | Reds |
| Lightness | medium-dark (60%) |
| Chroma | vivid (0.209) |
| Temperature | warm |
| Nearest name | Tomato Red (#EC2D01) |
| Black text | 4.82:1 |
| White text | 4.35:1 |
Values
| HEX | #E23823 |
| RGB | rgb(226, 56, 35) |
| HSL | hsl(7, 77%, 51%) |
| OKLCH | oklch(60.1% 0.209 30.8) |
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 #E23823 | 4.35:1 | AA large text | Lc -74.1 | Content text, not long reading |
| Black text on #E23823 | 4.82:1 | AA | Lc 35.5 | Non-text elements, placeholder text |
| #E23823 text on white | 4.35:1 | AA large text | Lc 68.6 | Content text, not long reading |
| #E23823 text on black | 4.82:1 | AA | Lc -33.1 | Non-text elements, placeholder text |
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 500.
-
Step 50
50
#FFF2F0
oklch(97.1% 0.014 28)
-
Step 100
100
#FDE3DE
oklch(93.6% 0.03 30.6)
-
Step 200
200
#FDCCC3
oklch(88.5% 0.057 30.3)
-
Step 300
300
#FCA898
oklch(81% 0.103 31.3)
-
Step 400
400
#F5735F
oklch(70.6% 0.164 30.6)
-
Step 500
500 (this color)
#E23823
oklch(60.1% 0.209 30.8)
-
Step 600
600
#D51A00
oklch(55.6% 0.218 30.8)
-
Step 700
700
#B41400
oklch(49% 0.192 30.8)
-
Step 800
800
#950E00
oklch(42.6% 0.167 30.7)
-
Step 900
900
#7A1609
oklch(37.8% 0.136 31)
-
Step 950
950
#481009
oklch(27.1% 0.086 30.5)
#E23823 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) | #6D611E | 0.223 |
| Deuteranopia (no green cones) | #978718 | 0.203 |
| Tritanopia (no blue cones) | #F90035 | 0.055 |
| Achromatopsia (no color) | #797979 | 0.211 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #E23823
#E23823
oklch(60.1% 0.209 30.8)
- #0091A3
#0091A3
oklch(60.2% 0.104 210.1)
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 #E23823, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Tomato Red #EC2D01 ΔE 0.021
- Imperial Red #E63946 ΔE 0.033
- Vermillion #F4320C ΔE 0.035
- Deep Orange #DC4D01 ΔE 0.039
- Red Pantone #EF233C ΔE 0.040
- Faded Red #D3494E ΔE 0.046
- Pale Red #D9544D ΔE 0.047
- Cherry Red #F7022A ΔE 0.048
Use #E23823 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.