#273159
Closest named color: Prussian Blue (#1D3557). oklch(32.6% 0.072 271.3), rgb(39, 49, 89).
Aa
White text reads best on this color (12.57:1).
About this color
#273159 is a dark, moderately saturated blue. In OKLCH its lightness is 33%, its chroma 0.072 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.018 away. White text reads best on it, at 12.57:1.
| Hue family | Blues |
| Lightness | dark (33%) |
| Chroma | moderately saturated (0.072) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.66:1 |
| White text | 12.57:1 |
Values
| HEX | #273159 |
| RGB | rgb(39, 49, 89) |
| HSL | hsl(228, 39%, 25%) |
| OKLCH | oklch(32.6% 0.072 271.3) |
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 #273159 | 12.57:1 | AAA | Lc -101.8 | Preferred for body text |
| Black text on #273159 | 1.66:1 | Fails | Lc 0.0 | Not readable |
| #273159 text on white | 12.57:1 | AAA | Lc 98.4 | Preferred for body text |
| #273159 text on black | 1.66:1 | 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 900.
-
Step 50
50
#F3F5FA
oklch(97% 0.007 268.5)
-
Step 100
100
#E6EAF5
oklch(93.7% 0.015 270)
-
Step 200
200
#D2D9EE
oklch(88.6% 0.03 271.1)
-
Step 300
300
#B4BFE5
oklch(80.9% 0.055 272.4)
-
Step 400
400
#8D9ED7
oklch(70.8% 0.086 271.3)
-
Step 500
500
#7185CD
oklch(63.2% 0.111 271.1)
-
Step 600
600
#5A6DB9
oklch(55.5% 0.12 271.4)
-
Step 700
700
#4A5BA0
oklch(49.1% 0.112 271.3)
-
Step 800
800
#3D4B82
oklch(42.8% 0.093 271.3)
-
Step 900
900 (this color)
#273159
oklch(32.6% 0.072 271.3)
-
Step 950
950
#1E253D
oklch(27% 0.046 270.7)
#273159 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) | #21365B | 0.016 |
| Deuteranopia (no green cones) | #1B3158 | 0.016 |
| Tritanopia (no blue cones) | #103A40 | 0.066 |
| Achromatopsia (no color) | #333333 | 0.072 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #273159
#273159
oklch(32.6% 0.072 271.3)
- #413200
#413200
oklch(32.5% 0.066 90.4)
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 #273159, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.018
- Marine #042E60 ΔE 0.040
- Space Cadet #2B2D42 ΔE 0.041
- Marine Blue #01386A ΔE 0.043
- Dark Blue Grey #1F3B4D ΔE 0.044
- Gunmetal #293241 ΔE 0.045
- Midnight Green #073B4C ΔE 0.052
- Onyx #343A40 ΔE 0.063
Use #273159 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.