#273140
Closest named color: Gunmetal (#293241). oklch(31.1% 0.03 258.3), rgb(39, 49, 64).
Aa
White text reads best on this color (13.12:1).
About this color
#273140 is a dark, muted blue. In OKLCH its lightness is 31%, its chroma 0.030 and its hue 258°. Its hue sits on the cool side of the wheel. The nearest named color is Gunmetal (#293241), ΔE 0.005 away. White text reads best on it, at 13.12:1.
| Hue family | Blues |
| Lightness | dark (31%) |
| Chroma | muted (0.030) |
| Temperature | cool |
| Nearest name | Gunmetal (#293241) |
| Black text | 1.59:1 |
| White text | 13.12:1 |
Values
| HEX | #273140 |
| RGB | rgb(39, 49, 64) |
| HSL | hsl(216, 24%, 20%) |
| OKLCH | oklch(31.1% 0.03 258.3) |
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 #273140 | 13.12:1 | AAA | Lc -102.6 | Preferred for body text |
| Black text on #273140 | 1.59:1 | Fails | Lc 0.0 | Not readable |
| #273140 text on white | 13.12:1 | AAA | Lc 99.4 | Preferred for body text |
| #273140 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
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E6EAF1
oklch(93.6% 0.01 261.8)
-
Step 200
200
#D1DAE7
oklch(88.5% 0.02 257.5)
-
Step 300
300
#B3C2D8
oklch(81% 0.035 257.9)
-
Step 400
400
#8BA2C5
oklch(70.7% 0.058 258.7)
-
Step 500
500
#6E8BB6
oklch(63.1% 0.073 258.1)
-
Step 600
600
#5674A2
oklch(55.5% 0.08 258.7)
-
Step 700
700
#46628B
oklch(49.2% 0.074 257.8)
-
Step 800
800
#3A5071
oklch(42.8% 0.062 258.3)
-
Step 900
900
#32425B
oklch(37.7% 0.048 259.1)
-
Step 950
950 (this color)
#273140
oklch(31.1% 0.03 258.3)
#273140 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) | #2C3241 | 0.009 |
| Deuteranopia (no green cones) | #292F40 | 0.007 |
| Tritanopia (no blue cones) | #1F3436 | 0.027 |
| Achromatopsia (no color) | #303030 | 0.030 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #273140
#273140
oklch(31.1% 0.03 258.3)
- #392F1F
#392F1F
oklch(31.1% 0.03 79)
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 #273140, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Gunmetal #293241 ΔE 0.005
- Space Cadet #2B2D42 ΔE 0.016
- Dark Blue Grey #1F3B4D ΔE 0.035
- Onyx #343A40 ΔE 0.039
- Prussian Blue #1D3557 ΔE 0.041
- Midnight Green #073B4C ΔE 0.041
- Oxford Blue #1B263B ΔE 0.043
- Dark #1B2431 ΔE 0.053
Use #273140 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.