#272F66
Closest named color: Prussian Blue (#1D3557). oklch(33% 0.096 273.7), rgb(39, 47, 102).
Aa
White text reads best on this color (12.46:1).
About this color
#272F66 is a dark, moderately saturated blue. In OKLCH its lightness is 33%, its chroma 0.096 and its hue 274°. Its hue sits on the cool side of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.037 away. White text reads best on it, at 12.46:1.
| Hue family | Blues |
| Lightness | dark (33%) |
| Chroma | moderately saturated (0.096) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.68:1 |
| White text | 12.46:1 |
Values
| HEX | #272F66 |
| RGB | rgb(39, 47, 102) |
| HSL | hsl(232, 45%, 28%) |
| OKLCH | oklch(33% 0.096 273.7) |
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 #272F66 | 12.46:1 | AAA | Lc -101.6 | Preferred for body text |
| Black text on #272F66 | 1.68:1 | Fails | Lc 0.0 | Not readable |
| #272F66 text on white | 12.46:1 | AAA | Lc 98.1 | Preferred for body text |
| #272F66 text on black | 1.68:1 | 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
#F3F5FC
oklch(97.1% 0.01 273.4)
-
Step 100
100
#E5E9F8
oklch(93.5% 0.021 274)
-
Step 200
200
#D0D8F4
oklch(88.5% 0.04 272.9)
-
Step 300
300
#B1BEF0
oklch(80.9% 0.072 273.3)
-
Step 400
400
#8A9BE8
oklch(70.7% 0.114 273.6)
-
Step 500
500
#6E80E2
oklch(63.1% 0.148 273.6)
-
Step 600
600
#5867CF
oklch(55.6% 0.16 273.9)
-
Step 700
700
#4855B4
oklch(49.1% 0.15 273.7)
-
Step 800
800
#3B4691
oklch(42.6% 0.123 273.7)
-
Step 900
900 (this color)
#272F66
oklch(33% 0.096 273.7)
-
Step 950
950
#1D2344
oklch(26.9% 0.062 273.8)
#272F66 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) | #113768 | 0.030 |
| Deuteranopia (no green cones) | #053165 | 0.033 |
| Tritanopia (no blue cones) | #003C45 | 0.086 |
| Achromatopsia (no color) | #343434 | 0.096 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #272F66
#272F66
oklch(33% 0.096 273.7)
- #413400
#413400
oklch(33% 0.068 93.5)
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 #272F66, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.037
- Marine Blue #01386A ΔE 0.038
- Marine #042E60 ΔE 0.038
- Midnight Blue #191970 ΔE 0.064
- Twilight Blue #0A437A ΔE 0.064
- Space Cadet #2B2D42 ΔE 0.064
- Dark Blue Grey #1F3B4D ΔE 0.065
- Gunmetal #293241 ΔE 0.069
Use #272F66 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.