#273274
Closest named color: Marine Blue (#01386A). oklch(34.8% 0.113 272), rgb(39, 50, 116).
Aa
White text reads best on this color (11.70:1).
About this color
#273274 is a dark, moderately saturated blue. In OKLCH its lightness is 35%, its chroma 0.113 and its hue 272°. Its hue sits on the cool side of the wheel. The nearest named color is Marine Blue (#01386A), ΔE 0.040 away. White text reads best on it, at 11.70:1.
| Hue family | Blues |
| Lightness | dark (35%) |
| Chroma | moderately saturated (0.113) |
| Temperature | cool |
| Nearest name | Marine Blue (#01386A) |
| Black text | 1.79:1 |
| White text | 11.70:1 |
Values
| HEX | #273274 |
| RGB | rgb(39, 50, 116) |
| HSL | hsl(231, 50%, 30%) |
| OKLCH | oklch(34.8% 0.113 272) |
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 #273274 | 11.70:1 | AAA | Lc -100.3 | Preferred for body text |
| Black text on #273274 | 1.79:1 | Fails | Lc 7.3 | Not readable |
| #273274 text on white | 11.70:1 | AAA | Lc 96.6 | Preferred for body text |
| #273274 text on black | 1.79:1 | 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
#F3F5FD
oklch(97.1% 0.011 274.9)
-
Step 100
100
#E4E9FB
oklch(93.6% 0.025 273.5)
-
Step 200
200
#CED8F9
oklch(88.5% 0.047 272.1)
-
Step 300
300
#ADBEF8
oklch(80.9% 0.084 271.8)
-
Step 400
400
#839AF5
oklch(70.7% 0.136 271.8)
-
Step 500
500
#667EF1
oklch(63.2% 0.173 271.7)
-
Step 600
600
#5063E0
oklch(55.5% 0.19 272.2)
-
Step 700
700
#4151C2
oklch(49% 0.176 272.1)
-
Step 800
800
#36449D
oklch(42.8% 0.145 272.1)
-
Step 900
900 (this color)
#273274
oklch(34.8% 0.113 272)
-
Step 950
950
#1B2349
oklch(27.1% 0.071 272)
#273274 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) | #033C76 | 0.036 |
| Deuteranopia (no green cones) | #003573 | 0.033 |
| Tritanopia (no blue cones) | #00424E | 0.095 |
| Achromatopsia (no color) | #383838 | 0.114 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #273274
#273274
oklch(34.8% 0.113 272)
- #473800
#473800
oklch(34.7% 0.071 92)
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 #273274, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine Blue #01386A ΔE 0.040
- Twilight Blue #0A437A ΔE 0.050
- Marine #042E60 ΔE 0.053
- Prussian Blue #1D3557 ΔE 0.055
- Midnight Blue #191970 ΔE 0.067
- Cobalt #1E488F ΔE 0.071
- Dark Slate Blue #483D8B ΔE 0.073
- Dark Blue Grey #1F3B4D ΔE 0.080
Use #273274 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.