#274279
Closest named color: Twilight Blue (#0A437A). oklch(38.8% 0.099 262.9), rgb(39, 66, 121).
Aa
White text reads best on this color (9.80:1).
About this color
#274279 is a dark, moderately saturated blue. In OKLCH its lightness is 39%, its chroma 0.099 and its hue 263°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight Blue (#0A437A), ΔE 0.022 away. White text reads best on it, at 9.80:1.
| Hue family | Blues |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.099) |
| Temperature | cool |
| Nearest name | Twilight Blue (#0A437A) |
| Black text | 2.14:1 |
| White text | 9.80:1 |
Values
| HEX | #274279 |
| RGB | rgb(39, 66, 121) |
| HSL | hsl(220, 51%, 31%) |
| OKLCH | oklch(38.8% 0.099 262.9) |
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 #274279 | 9.80:1 | AAA | Lc -96.7 | Preferred for body text |
| Black text on #274279 | 2.14:1 | Fails | Lc 11.4 | Not readable |
| #274279 text on white | 9.80:1 | AAA | Lc 92.5 | Preferred for body text |
| #274279 text on black | 2.14:1 | Fails | Lc -9.9 | 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
#F2F6FC
oklch(97.2% 0.009 258.3)
-
Step 100
100
#E2EAF9
oklch(93.5% 0.022 263.2)
-
Step 200
200
#CBDAF5
oklch(88.6% 0.041 262.3)
-
Step 300
300
#A7C1F2
oklch(80.9% 0.075 262.9)
-
Step 400
400
#79A0EB
oklch(70.8% 0.119 262.7)
-
Step 500
500
#5786E5
oklch(63.2% 0.152 262.9)
-
Step 600
600
#3D6DD3
oklch(55.6% 0.166 263.1)
-
Step 700
700
#2F5BB6
oklch(49.2% 0.153 262.7)
-
Step 800
800
#274B94
oklch(42.8% 0.127 262.6)
-
Step 900
900 (this color)
#274279
oklch(38.8% 0.099 262.9)
-
Step 950
950
#162545
oklch(27% 0.063 263.8)
#274279 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) | #28487B | 0.018 |
| Deuteranopia (no green cones) | #1B4078 | 0.014 |
| Tritanopia (no blue cones) | #004F57 | 0.084 |
| Achromatopsia (no color) | #444444 | 0.099 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #274279
#274279
oklch(38.8% 0.099 262.9)
- #594000
#594000
oklch(38.9% 0.08 83.4)
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 #274279, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight Blue #0A437A ΔE 0.022
- Cobalt #1E488F ΔE 0.038
- Light Navy #155084 ΔE 0.042
- Marine Blue #01386A ΔE 0.052
- Deep Sea Blue #015482 ΔE 0.053
- Dusk Blue #26538D ΔE 0.055
- Dark Grey Blue #29465B ΔE 0.056
- Dark Slate Blue #483D8B ΔE 0.058
Use #274279 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.