#223647
Closest named color: Gunmetal (#293241). oklch(32.4% 0.04 245.1), rgb(34, 54, 71).
Aa
White text reads best on this color (12.45:1).
About this color
#223647 is a dark, muted blue. In OKLCH its lightness is 32%, its chroma 0.040 and its hue 245°. Its hue sits on the cool side of the wheel. The nearest named color is Gunmetal (#293241), ΔE 0.016 away. White text reads best on it, at 12.45:1.
| Hue family | Blues |
| Lightness | dark (32%) |
| Chroma | muted (0.040) |
| Temperature | cool |
| Nearest name | Gunmetal (#293241) |
| Black text | 1.68:1 |
| White text | 12.45:1 |
Values
| HEX | #223647 |
| RGB | rgb(34, 54, 71) |
| HSL | hsl(208, 35%, 21%) |
| OKLCH | oklch(32.4% 0.04 245.1) |
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 #223647 | 12.45:1 | AAA | Lc -101.7 | Preferred for body text |
| Black text on #223647 | 1.68:1 | Fails | Lc 0.0 | Not readable |
| #223647 text on white | 12.45:1 | AAA | Lc 98.3 | Preferred for body text |
| #223647 text on black | 1.68:1 | 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
#F3F6F8
oklch(97.1% 0.004 236.5)
-
Step 100
100
#E5EBEF
oklch(93.7% 0.008 236.6)
-
Step 200
200
#D0DBE4
oklch(88.6% 0.017 242.5)
-
Step 300
300
#B1C3D3
oklch(80.9% 0.03 245)
-
Step 400
400
#88A4BD
oklch(70.6% 0.048 245.5)
-
Step 500
500
#6A8EAC
oklch(63.1% 0.061 244.1)
-
Step 600
600
#527898
oklch(55.7% 0.066 244.8)
-
Step 700
700
#426482
oklch(49% 0.062 246.1)
-
Step 800
800
#375269
oklch(42.7% 0.05 245.1)
-
Step 900
900 (this color)
#223647
oklch(32.4% 0.04 245.1)
-
Step 950
950
#1C2832
oklch(27% 0.025 244)
#223647 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) | #2F3648 | 0.019 |
| Deuteranopia (no green cones) | #2A3247 | 0.016 |
| Tritanopia (no blue cones) | #123A3C | 0.033 |
| Achromatopsia (no color) | #343434 | 0.040 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #223647
#223647
oklch(32.4% 0.04 245.1)
- #42301D
#42301D
oklch(32.5% 0.04 67.1)
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 #223647, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Gunmetal #293241 ΔE 0.016
- Dark Blue Grey #1F3B4D ΔE 0.017
- Midnight Green #073B4C ΔE 0.025
- Space Cadet #2B2D42 ΔE 0.030
- Prussian Blue #1D3557 ΔE 0.030
- Onyx #343A40 ΔE 0.034
- Charcoal #264653 ΔE 0.053
- Oxford Blue #1B263B ΔE 0.056
Use #223647 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.