#243442
Closest named color: Gunmetal (#293241). oklch(31.7% 0.033 245.5), rgb(36, 52, 66).
Aa
White text reads best on this color (12.76:1).
About this color
#243442 is a dark, muted blue. In OKLCH its lightness is 32%, its chroma 0.033 and its hue 245°. Its hue sits on the cool side of the wheel. The nearest named color is Gunmetal (#293241), ΔE 0.009 away. White text reads best on it, at 12.76:1.
| Hue family | Blues |
| Lightness | dark (32%) |
| Chroma | muted (0.033) |
| Temperature | cool |
| Nearest name | Gunmetal (#293241) |
| Black text | 1.64:1 |
| White text | 12.76:1 |
Values
| HEX | #243442 |
| RGB | rgb(36, 52, 66) |
| HSL | hsl(208, 29%, 20%) |
| OKLCH | oklch(31.7% 0.033 245.5) |
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 #243442 | 12.76:1 | AAA | Lc -102.2 | Preferred for body text |
| Black text on #243442 | 1.64:1 | Fails | Lc 0.0 | Not readable |
| #243442 text on white | 12.76:1 | AAA | Lc 98.8 | Preferred for body text |
| #243442 text on black | 1.64:1 | 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
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E4EBF1
oklch(93.6% 0.011 243.7)
-
Step 200
200
#CEDBE7
oklch(88.5% 0.022 245.9)
-
Step 300
300
#ADC4D9
oklch(81% 0.039 245.9)
-
Step 400
400
#80A5C5
oklch(70.6% 0.062 244.9)
-
Step 500
500
#608FB7
oklch(63.2% 0.079 245.2)
-
Step 600
600
#4578A3
oklch(55.6% 0.087 245.7)
-
Step 700
700
#37658B
oklch(49.1% 0.08 245.3)
-
Step 800
800
#2E5271
oklch(42.6% 0.067 246.2)
-
Step 900
900
#29445C
oklch(37.6% 0.053 246.6)
-
Step 950
950 (this color)
#243442
oklch(31.7% 0.033 245.5)
#243442 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) | #2E3443 | 0.015 |
| Deuteranopia (no green cones) | #2A3142 | 0.013 |
| Tritanopia (no blue cones) | #193739 | 0.026 |
| Achromatopsia (no color) | #323232 | 0.033 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #243442
#243442
oklch(31.7% 0.033 245.5)
- #3E2F20
#3E2F20
oklch(31.8% 0.033 66.2)
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 #243442, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Gunmetal #293241 ΔE 0.009
- Space Cadet #2B2D42 ΔE 0.025
- Dark Blue Grey #1F3B4D ΔE 0.026
- Midnight Green #073B4C ΔE 0.032
- Onyx #343A40 ΔE 0.034
- Prussian Blue #1D3557 ΔE 0.038
- Oxford Blue #1B263B ΔE 0.050
- Dark #1B2431 ΔE 0.060
Use #243442 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.