#45313B
Closest named color: Onyx (#343A40). oklch(34% 0.033 347.5), rgb(69, 49, 59).
Aa
White text reads best on this color (11.96:1).
About this color
#45313B is a dark, muted red. In OKLCH its lightness is 34%, its chroma 0.033 and its hue 348°. Its hue sits on the warm side of the wheel. The nearest named color is Onyx (#343A40), ΔE 0.038 away. White text reads best on it, at 11.96:1.
| Hue family | Reds |
| Lightness | dark (34%) |
| Chroma | muted (0.033) |
| Temperature | warm |
| Nearest name | Onyx (#343A40) |
| Black text | 1.75:1 |
| White text | 11.96:1 |
Values
| HEX | #45313B |
| RGB | rgb(69, 49, 59) |
| HSL | hsl(330, 17%, 23%) |
| OKLCH | oklch(34% 0.033 347.5) |
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 #45313B | 11.96:1 | AAA | Lc -100.9 | Preferred for body text |
| Black text on #45313B | 1.75:1 | Fails | Lc 0.0 | Not readable |
| #45313B text on white | 11.96:1 | AAA | Lc 97.4 | Preferred for body text |
| #45313B text on black | 1.75:1 | Fails | Lc 0.0 | Not readable |
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 900.
-
Step 50
50
#F7F4F6
oklch(97% 0.004 337.4)
-
Step 100
100
#EEE8EB
oklch(93.7% 0.008 345.4)
-
Step 200
200
#E1D6DB
oklch(88.6% 0.014 348)
-
Step 300
300
#CEBAC3
oklch(80.8% 0.026 348.7)
-
Step 400
400
#B497A5
oklch(70.7% 0.039 347.5)
-
Step 500
500
#A17D8F
oklch(63% 0.051 347.1)
-
Step 600
600
#8C6679
oklch(55.5% 0.056 347.6)
-
Step 700
700
#775566
oklch(49.1% 0.051 347.7)
-
Step 800
800
#614653
oklch(42.8% 0.042 348.6)
-
Step 900
900 (this color)
#45313B
oklch(34% 0.033 347.5)
-
Step 950
950
#2E2228
oklch(26.8% 0.021 347.1)
#45313B 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) | #32353B | 0.036 |
| Deuteranopia (no green cones) | #37383A | 0.033 |
| Tritanopia (no blue cones) | #483134 | 0.013 |
| Achromatopsia (no color) | #373737 | 0.033 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #45313B
#45313B
oklch(34% 0.033 347.5)
- #273E34
#273E34
oklch(34.1% 0.034 165.5)
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 #45313B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Onyx #343A40 ΔE 0.038
- Charcoal Grey #3C4142 ΔE 0.049
- Gunmetal #293241 ΔE 0.050
- Space Cadet #2B2D42 ΔE 0.053
- Dark Blue Grey #1F3B4D ΔE 0.065
- Purple Brown #673A3F ΔE 0.075
- Charcoal #264653 ΔE 0.076
- Prussian Blue #1D3557 ΔE 0.077
Use #45313B 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.