#223645
Closest named color: Gunmetal (#293241). oklch(32.3% 0.037 241.7), rgb(34, 54, 69).
Aa
White text reads best on this color (12.48:1).
About this color
#223645 is a dark, muted blue. In OKLCH its lightness is 32%, its chroma 0.037 and its hue 242°. Its hue sits on the cool side of the wheel. The nearest named color is Gunmetal (#293241), ΔE 0.015 away. White text reads best on it, at 12.48:1.
| Hue family | Blues |
| Lightness | dark (32%) |
| Chroma | muted (0.037) |
| Temperature | cool |
| Nearest name | Gunmetal (#293241) |
| Black text | 1.68:1 |
| White text | 12.48:1 |
Values
| HEX | #223645 |
| RGB | rgb(34, 54, 69) |
| HSL | hsl(206, 34%, 20%) |
| OKLCH | oklch(32.3% 0.037 241.7) |
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 #223645 | 12.48:1 | AAA | Lc -101.7 | Preferred for body text |
| Black text on #223645 | 1.68:1 | Fails | Lc 0.0 | Not readable |
| #223645 text on white | 12.48:1 | AAA | Lc 98.3 | Preferred for body text |
| #223645 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 950.
-
Step 50
50
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E3EBF2
oklch(93.6% 0.013 244.3)
-
Step 200
200
#CCDCE8
oklch(88.6% 0.024 240.1)
-
Step 300
300
#A8C5DB
oklch(80.9% 0.044 240.9)
-
Step 400
400
#79A7C9
oklch(70.8% 0.07 241)
-
Step 500
500
#5590BB
oklch(63.1% 0.09 241.7)
-
Step 600
600
#387AA7
oklch(55.7% 0.097 241.3)
-
Step 700
700
#296690
oklch(49% 0.092 242.2)
-
Step 800
800
#245474
oklch(42.8% 0.074 240.8)
-
Step 900
900
#23455E
oklch(37.7% 0.059 242.4)
-
Step 950
950 (this color)
#223645
oklch(32.3% 0.037 241.7)
#223645 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) | #303646 | 0.021 |
| Deuteranopia (no green cones) | #2B3245 | 0.017 |
| Tritanopia (no blue cones) | #133A3B | 0.031 |
| Achromatopsia (no color) | #343434 | 0.037 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #223645
#223645
oklch(32.3% 0.037 241.7)
- #412F20
#412F20
oklch(32.2% 0.036 60.8)
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 #223645, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Gunmetal #293241 ΔE 0.015
- Dark Blue Grey #1F3B4D ΔE 0.019
- Midnight Green #073B4C ΔE 0.026
- Space Cadet #2B2D42 ΔE 0.030
- Onyx #343A40 ΔE 0.033
- Prussian Blue #1D3557 ΔE 0.034
- Charcoal #264653 ΔE 0.054
- Oxford Blue #1B263B ΔE 0.056
Use #223645 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.