#243248
Closest named color: Gunmetal (#293241). oklch(31.5% 0.044 259.2), rgb(36, 50, 72).
Aa
White text reads best on this color (12.92:1).
About this color
#243248 is a dark, muted blue. In OKLCH its lightness is 32%, its chroma 0.044 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Gunmetal (#293241), ΔE 0.014 away. White text reads best on it, at 12.92:1.
| Hue family | Blues |
| Lightness | dark (32%) |
| Chroma | muted (0.044) |
| Temperature | cool |
| Nearest name | Gunmetal (#293241) |
| Black text | 1.62:1 |
| White text | 12.92:1 |
Values
| HEX | #243248 |
| RGB | rgb(36, 50, 72) |
| HSL | hsl(217, 33%, 21%) |
| OKLCH | oklch(31.5% 0.044 259.2) |
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 #243248 | 12.92:1 | AAA | Lc -102.4 | Preferred for body text |
| Black text on #243248 | 1.62:1 | Fails | Lc 0.0 | Not readable |
| #243248 text on white | 12.92:1 | AAA | Lc 99.1 | Preferred for body text |
| #243248 text on black | 1.62:1 | 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
#E4EAF4
oklch(93.5% 0.015 260.7)
-
Step 200
200
#CEDAED
oklch(88.5% 0.029 259.6)
-
Step 300
300
#ADC2E3
oklch(80.9% 0.052 259.4)
-
Step 400
400
#81A2D5
oklch(70.7% 0.084 258.9)
-
Step 500
500
#628ACA
oklch(63.1% 0.107 259.5)
-
Step 600
600
#4873B6
oklch(55.6% 0.115 259)
-
Step 700
700
#3A609D
oklch(49.1% 0.108 259.5)
-
Step 800
800
#304F7F
oklch(42.8% 0.088 258.9)
-
Step 900
900
#2B4266
oklch(37.8% 0.068 259.1)
-
Step 950
950 (this color)
#243248
oklch(31.5% 0.044 259.2)
#243248 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) | #2A3349 | 0.010 |
| Deuteranopia (no green cones) | #263048 | 0.007 |
| Tritanopia (no blue cones) | #16373A | 0.039 |
| Achromatopsia (no color) | #313131 | 0.044 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #243248
#243248
oklch(31.5% 0.044 259.2)
- #3E2F16
#3E2F16
oklch(31.6% 0.044 78.8)
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 #243248, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Gunmetal #293241 ΔE 0.014
- Space Cadet #2B2D42 ΔE 0.019
- Prussian Blue #1D3557 ΔE 0.027
- Dark Blue Grey #1F3B4D ΔE 0.029
- Midnight Green #073B4C ΔE 0.036
- Onyx #343A40 ΔE 0.043
- Oxford Blue #1B263B ΔE 0.046
- Marine #042E60 ΔE 0.056
Use #243248 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.