#903145
Closest named color: Auburn (#9B2226). oklch(45.7% 0.129 11.1), rgb(144, 49, 69).
Aa
White text reads best on this color (7.74:1).
About this color
#903145 is a medium-dark, moderately saturated red. In OKLCH its lightness is 46%, its chroma 0.129 and its hue 11°. Its hue sits on the warm side of the wheel. The nearest named color is Auburn (#9B2226), ΔE 0.044 away. White text reads best on it, at 7.74:1.
| Hue family | Reds |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.129) |
| Temperature | warm |
| Nearest name | Auburn (#9B2226) |
| Black text | 2.71:1 |
| White text | 7.74:1 |
Values
| HEX | #903145 |
| RGB | rgb(144, 49, 69) |
| HSL | hsl(347, 49%, 38%) |
| OKLCH | oklch(45.7% 0.129 11.1) |
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 #903145 | 7.74:1 | AAA | Lc -90.9 | Preferred for body text |
| Black text on #903145 | 2.71:1 | Fails | Lc 17.9 | Dividers and decoration only |
| #903145 text on white | 7.74:1 | AAA | Lc 86.1 | Fine for body text |
| #903145 text on black | 2.71:1 | Fails | Lc -16.0 | 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 800.
-
Step 50
50
#FCF3F4
oklch(97.1% 0.01 9.5)
-
Step 100
100
#F8E4E6
oklch(93.5% 0.022 10.6)
-
Step 200
200
#F3CED2
oklch(88.4% 0.042 10.6)
-
Step 300
300
#EDADB4
oklch(80.9% 0.076 11.6)
-
Step 400
400
#E07F8E
oklch(70.6% 0.12 10.7)
-
Step 500
500
#D55B72
oklch(63.1% 0.154 11)
-
Step 600
600
#C03D5A
oklch(55.6% 0.167 11.3)
-
Step 700
700
#A52E4A
oklch(49.1% 0.155 11.3)
-
Step 800
800 (this color)
#903145
oklch(45.7% 0.129 11.1)
-
Step 900
900
#6C2634
oklch(37.7% 0.1 11.1)
-
Step 950
950
#40171F
oklch(27% 0.064 10.3)
#903145 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) | #474645 | 0.142 |
| Deuteranopia (no green cones) | #5F5A43 | 0.131 |
| Tritanopia (no blue cones) | #9D2139 | 0.032 |
| Achromatopsia (no color) | #535353 | 0.129 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #903145
#903145
oklch(45.7% 0.129 11.1)
- #006562
#006562
oklch(45.8% 0.079 191.2)
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 #903145, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Auburn #9B2226 ΔE 0.044
- Berry #990F4B ΔE 0.049
- Cranberry #9E003A ΔE 0.051
- Brown #A52A2A ΔE 0.053
- Purple Red #990147 ΔE 0.054
- Mulberry #920A4E ΔE 0.057
- Brownish Purple #76424E ΔE 0.057
- Rouge #AB1239 ΔE 0.058
Use #903145 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.