#323D4D
Closest named color: Onyx (#343A40). oklch(35.7% 0.032 257.7), rgb(50, 61, 77).
Aa
White text reads best on this color (10.99:1).
About this color
#323D4D is a dark, muted blue. In OKLCH its lightness is 36%, its chroma 0.032 and its hue 258°. Its hue sits on the cool side of the wheel. The nearest named color is Onyx (#343A40), ΔE 0.022 away. White text reads best on it, at 10.99:1.
| Hue family | Blues |
| Lightness | dark (36%) |
| Chroma | muted (0.032) |
| Temperature | cool |
| Nearest name | Onyx (#343A40) |
| Black text | 1.91:1 |
| White text | 10.99:1 |
Values
| HEX | #323D4D |
| RGB | rgb(50, 61, 77) |
| HSL | hsl(216, 21%, 25%) |
| OKLCH | oklch(35.7% 0.032 257.7) |
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 #323D4D | 10.99:1 | AAA | Lc -99.3 | Preferred for body text |
| Black text on #323D4D | 1.91:1 | Fails | Lc 8.5 | Not readable |
| #323D4D text on white | 10.99:1 | AAA | Lc 95.4 | Preferred for body text |
| #323D4D text on black | 1.91:1 | 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
#F4F5F8
oklch(97% 0.004 271.4)
-
Step 100
100
#E7EAEE
oklch(93.6% 0.006 255.5)
-
Step 200
200
#D4DAE2
oklch(88.6% 0.013 255.5)
-
Step 300
300
#B7C1D0
oklch(80.8% 0.024 258.4)
-
Step 400
400
#92A2B9
oklch(70.7% 0.038 257.4)
-
Step 500
500
#778BA7
oklch(63.1% 0.048 256.8)
-
Step 600
600
#607592
oklch(55.7% 0.052 256.5)
-
Step 700
700
#4F627D
oklch(49.1% 0.049 257.2)
-
Step 800
800
#415065
oklch(42.7% 0.04 256.8)
-
Step 900
900 (this color)
#323D4D
oklch(35.7% 0.032 257.7)
-
Step 950
950
#202730
oklch(27% 0.02 254.8)
#323D4D 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) | #373E4E | 0.009 |
| Deuteranopia (no green cones) | #343B4D | 0.007 |
| Tritanopia (no blue cones) | #2A4042 | 0.028 |
| Achromatopsia (no color) | #3C3C3C | 0.032 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #323D4D
#323D4D
oklch(35.7% 0.032 257.7)
- #463A2A
#463A2A
oklch(35.7% 0.031 74.5)
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 #323D4D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Onyx #343A40 ΔE 0.022
- Dark Blue Grey #1F3B4D ΔE 0.027
- Charcoal #264653 ΔE 0.030
- Charcoal Grey #3C4142 ΔE 0.031
- Dark Grey Blue #29465B ΔE 0.032
- Gunmetal #293241 ΔE 0.042
- Midnight Green #073B4C ΔE 0.045
- Prussian Blue #1D3557 ΔE 0.047
Use #323D4D 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.