#323E59
Closest named color: Dark Grey Blue (#29465B). oklch(36.6% 0.05 265.6), rgb(50, 62, 89).
Aa
White text reads best on this color (10.66:1).
About this color
#323E59 is a dark, muted blue. In OKLCH its lightness is 37%, its chroma 0.050 and its hue 266°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.026 away. White text reads best on it, at 10.66:1.
| Hue family | Blues |
| Lightness | dark (37%) |
| Chroma | muted (0.050) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 1.96:1 |
| White text | 10.66:1 |
Values
| HEX | #323E59 |
| RGB | rgb(50, 62, 89) |
| HSL | hsl(222, 28%, 27%) |
| OKLCH | oklch(36.6% 0.05 265.6) |
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 #323E59 | 10.66:1 | AAA | Lc -98.6 | Preferred for body text |
| Black text on #323E59 | 1.96:1 | Fails | Lc 9.2 | Not readable |
| #323E59 text on white | 10.66:1 | AAA | Lc 94.7 | Preferred for body text |
| #323E59 text on black | 1.96:1 | Fails | Lc -7.9 | 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
#F4F5F9
oklch(97.1% 0.005 275)
-
Step 100
100
#E6EAF1
oklch(93.6% 0.01 261.8)
-
Step 200
200
#D3D9E7
oklch(88.5% 0.02 267.3)
-
Step 300
300
#B5C1D9
oklch(80.9% 0.036 264.3)
-
Step 400
400
#8FA0C7
oklch(70.6% 0.06 266.4)
-
Step 500
500
#7389B8
oklch(63.1% 0.076 264.9)
-
Step 600
600
#5C72A4
oklch(55.6% 0.083 265.6)
-
Step 700
700
#4C5F8D
oklch(49% 0.078 266.4)
-
Step 800
800
#3E4E72
oklch(42.7% 0.064 265.5)
-
Step 900
900 (this color)
#323E59
oklch(36.6% 0.05 265.6)
-
Step 950
950
#1F2636
oklch(26.9% 0.032 266.1)
#323E59 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) | #35405A | 0.008 |
| Deuteranopia (no green cones) | #313D58 | 0.004 |
| Tritanopia (no blue cones) | #254447 | 0.046 |
| Achromatopsia (no color) | #3E3E3E | 0.050 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #323E59
#323E59
oklch(36.6% 0.05 265.6)
- #4A3D1E
#4A3D1E
oklch(36.6% 0.05 87.1)
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 #323E59, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.026
- Charcoal #264653 ΔE 0.033
- Dark Blue Grey #1F3B4D ΔE 0.035
- Onyx #343A40 ΔE 0.042
- Prussian Blue #1D3557 ΔE 0.043
- Charcoal Grey #3C4142 ΔE 0.046
- Midnight Green #073B4C ΔE 0.052
- Gunmetal #293241 ΔE 0.054
Use #323E59 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.