#323E4C
Closest named color: Onyx (#343A40). oklch(35.9% 0.029 252.5), rgb(50, 62, 76).
Aa
White text reads best on this color (10.88:1).
About this color
#323E4C is a dark close to neutral grey. In OKLCH its lightness is 36%, its chroma 0.029. It has too little chroma to lean warm or cool. The nearest named color is Onyx (#343A40), ΔE 0.021 away. White text reads best on it, at 10.88:1.
| Hue family | Neutrals |
| Lightness | dark (36%) |
| Chroma | close to neutral grey (0.029) |
| Temperature | neutral |
| Nearest name | Onyx (#343A40) |
| Black text | 1.92:1 |
| White text | 10.88:1 |
Values
| HEX | #323E4C |
| RGB | rgb(50, 62, 76) |
| HSL | hsl(212, 21%, 25%) |
| OKLCH | oklch(35.9% 0.029 252.5) |
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 #323E4C | 10.88:1 | AAA | Lc -99.1 | Preferred for body text |
| Black text on #323E4C | 1.92:1 | Fails | Lc 8.7 | Not readable |
| #323E4C text on white | 10.88:1 | AAA | Lc 95.2 | Preferred for body text |
| #323E4C text on black | 1.92:1 | Fails | Lc -7.4 | 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
#F4F5F7
oklch(97% 0.003 264.5)
-
Step 100
100
#E7EAEE
oklch(93.6% 0.006 255.5)
-
Step 200
200
#D4DAE1
oklch(88.6% 0.012 252.1)
-
Step 300
300
#B7C2CF
oklch(81% 0.022 252.5)
-
Step 400
400
#91A2B6
oklch(70.6% 0.035 252.6)
-
Step 500
500
#768CA4
oklch(63.1% 0.044 250.8)
-
Step 600
600
#5F758F
oklch(55.5% 0.048 252.9)
-
Step 700
700
#4E637A
oklch(49.2% 0.045 251)
-
Step 800
800
#405063
oklch(42.5% 0.038 253)
-
Step 900
900 (this color)
#323E4C
oklch(35.9% 0.029 252.5)
-
Step 950
950
#20272F
oklch(26.9% 0.018 251.9)
#323E4C 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) | #393E4D | 0.011 |
| Deuteranopia (no green cones) | #363C4C | 0.008 |
| Tritanopia (no blue cones) | #2A4143 | 0.024 |
| Achromatopsia (no color) | #3D3D3D | 0.029 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #323E4C
#323E4C
oklch(35.9% 0.029 252.5)
- #463B2C
#463B2C
oklch(35.9% 0.029 75.2)
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 #323E4C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Onyx #343A40 ΔE 0.021
- Charcoal Grey #3C4142 ΔE 0.027
- Charcoal #264653 ΔE 0.027
- Dark Blue Grey #1F3B4D ΔE 0.028
- Dark Grey Blue #29465B ΔE 0.031
- Gunmetal #293241 ΔE 0.044
- Midnight Green #073B4C ΔE 0.046
- Prussian Blue #1D3557 ΔE 0.050
Use #323E4C 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.