#273544
Closest named color: Gunmetal (#293241). oklch(32.3% 0.033 250.6), rgb(39, 53, 68).
Aa
White text reads best on this color (12.50:1).
About this color
#273544 is a dark, muted blue. In OKLCH its lightness is 32%, its chroma 0.033 and its hue 251°. 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 12.50:1.
| Hue family | Blues |
| Lightness | dark (32%) |
| Chroma | muted (0.033) |
| Temperature | cool |
| Nearest name | Gunmetal (#293241) |
| Black text | 1.67:1 |
| White text | 12.50:1 |
Values
| HEX | #273544 |
| RGB | rgb(39, 53, 68) |
| HSL | hsl(211, 27%, 21%) |
| OKLCH | oklch(32.3% 0.033 250.6) |
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 #273544 | 12.50:1 | AAA | Lc -101.8 | Preferred for body text |
| Black text on #273544 | 1.67:1 | Fails | Lc 0.0 | Not readable |
| #273544 text on white | 12.50:1 | AAA | Lc 98.4 | Preferred for body text |
| #273544 text on black | 1.67:1 | 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
#CFDBE7
oklch(88.6% 0.021 248.1)
-
Step 300
300
#AFC3D9
oklch(80.9% 0.038 250.8)
-
Step 400
400
#84A4C6
oklch(70.7% 0.061 250.2)
-
Step 500
500
#658DB8
oklch(63.1% 0.079 250.9)
-
Step 600
600
#4B77A4
oklch(55.7% 0.086 250.1)
-
Step 700
700
#3C648D
oklch(49.2% 0.08 250.3)
-
Step 800
800
#325172
oklch(42.6% 0.066 251)
-
Step 900
900
#2C445C
oklch(37.8% 0.051 249.3)
-
Step 950
950 (this color)
#273544
oklch(32.3% 0.033 250.6)
#273544 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) | #2F3545 | 0.012 |
| Deuteranopia (no green cones) | #2C3244 | 0.012 |
| Tritanopia (no blue cones) | #1D383A | 0.027 |
| Achromatopsia (no color) | #343434 | 0.033 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #273544
#273544
oklch(32.3% 0.033 250.6)
- #3E3121
#3E3121
oklch(32.3% 0.032 72.1)
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 #273544, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Gunmetal #293241 ΔE 0.010
- Dark Blue Grey #1F3B4D ΔE 0.022
- Space Cadet #2B2D42 ΔE 0.026
- Onyx #343A40 ΔE 0.029
- Midnight Green #073B4C ΔE 0.033
- Prussian Blue #1D3557 ΔE 0.036
- Charcoal Grey #3C4142 ΔE 0.055
- Oxford Blue #1B263B ΔE 0.055
Use #273544 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.