#243144
Closest named color: Gunmetal (#293241). oklch(31% 0.039 257.8), rgb(36, 49, 68).
Aa
White text reads best on this color (13.14:1).
About this color
#243144 is a dark, muted blue. In OKLCH its lightness is 31%, its chroma 0.039 and its hue 258°. Its hue sits on the cool side of the wheel. The nearest named color is Gunmetal (#293241), ΔE 0.010 away. White text reads best on it, at 13.14:1.
| Hue family | Blues |
| Lightness | dark (31%) |
| Chroma | muted (0.039) |
| Temperature | cool |
| Nearest name | Gunmetal (#293241) |
| Black text | 1.59:1 |
| White text | 13.14:1 |
Values
| HEX | #243144 |
| RGB | rgb(36, 49, 68) |
| HSL | hsl(216, 31%, 20%) |
| OKLCH | oklch(31% 0.039 257.8) |
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 #243144 | 13.14:1 | AAA | Lc -102.6 | Preferred for body text |
| Black text on #243144 | 1.59:1 | Fails | Lc 0.0 | Not readable |
| #243144 text on white | 13.14:1 | AAA | Lc 99.4 | Preferred for body text |
| #243144 text on black | 1.59:1 | 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
#F3F6FA
oklch(97.2% 0.006 255.5)
-
Step 100
100
#E4EAF3
oklch(93.5% 0.014 258.3)
-
Step 200
200
#CFDAEA
oklch(88.5% 0.025 257.6)
-
Step 300
300
#AFC2DF
oklch(80.9% 0.046 258.8)
-
Step 400
400
#84A2CF
oklch(70.6% 0.074 258.3)
-
Step 500
500
#658BC2
oklch(63.1% 0.094 257.6)
-
Step 600
600
#4C74AE
oklch(55.6% 0.101 257.6)
-
Step 700
700
#3D6196
oklch(49.1% 0.095 257.9)
-
Step 800
800
#334F79
oklch(42.6% 0.078 258.3)
-
Step 900
900
#2D4262
oklch(37.7% 0.061 258.6)
-
Step 950
950 (this color)
#243144
oklch(31% 0.039 257.8)
#243144 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) | #2A3245 | 0.010 |
| Deuteranopia (no green cones) | #262F44 | 0.007 |
| Tritanopia (no blue cones) | #193538 | 0.033 |
| Achromatopsia (no color) | #303030 | 0.039 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #243144
#243144
oklch(31% 0.039 257.8)
- #3B2E19
#3B2E19
oklch(31% 0.039 78.6)
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 #243144, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Gunmetal #293241 ΔE 0.010
- Space Cadet #2B2D42 ΔE 0.016
- Dark Blue Grey #1F3B4D ΔE 0.033
- Prussian Blue #1D3557 ΔE 0.034
- Midnight Green #073B4C ΔE 0.038
- Oxford Blue #1B263B ΔE 0.042
- Onyx #343A40 ΔE 0.043
- Dark #1B2431 ΔE 0.054
Use #243144 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.