#274285
Closest named color: Cobalt (#1E488F). oklch(39.7% 0.117 265), rgb(39, 66, 133).
Aa
White text reads best on this color (9.52:1).
About this color
#274285 is a dark, moderately saturated blue. In OKLCH its lightness is 40%, its chroma 0.117 and its hue 265°. Its hue sits on the cool side of the wheel. The nearest named color is Cobalt (#1E488F), ΔE 0.022 away. White text reads best on it, at 9.52:1.
| Hue family | Blues |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.117) |
| Temperature | cool |
| Nearest name | Cobalt (#1E488F) |
| Black text | 2.20:1 |
| White text | 9.52:1 |
Values
| HEX | #274285 |
| RGB | rgb(39, 66, 133) |
| HSL | hsl(223, 55%, 34%) |
| OKLCH | oklch(39.7% 0.117 265) |
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 #274285 | 9.52:1 | AAA | Lc -96.0 | Preferred for body text |
| Black text on #274285 | 2.20:1 | Fails | Lc 12.2 | Not readable |
| #274285 text on white | 9.52:1 | AAA | Lc 91.7 | Preferred for body text |
| #274285 text on black | 2.20:1 | Fails | Lc -10.6 | 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
#F2F6FE
oklch(97.2% 0.012 264.5)
-
Step 100
100
#E2EAFC
oklch(93.6% 0.026 266.6)
-
Step 200
200
#C9D9FA
oklch(88.4% 0.049 264.9)
-
Step 300
300
#A5C0FA
oklch(80.9% 0.088 265.1)
-
Step 400
400
#759DF8
oklch(70.6% 0.141 265)
-
Step 500
500
#5382F5
oklch(63.2% 0.18 265)
-
Step 600
600
#3968E4
oklch(55.7% 0.196 264.9)
-
Step 700
700
#2C55C6
oklch(49% 0.182 265.1)
-
Step 800
800
#2547A0
oklch(42.8% 0.15 264.9)
-
Step 900
900 (this color)
#274285
oklch(39.7% 0.117 265)
-
Step 950
950
#14244A
oklch(27% 0.074 264.7)
#274285 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) | #1D4A87 | 0.023 |
| Deuteranopia (no green cones) | #034184 | 0.026 |
| Tritanopia (no blue cones) | #00525D | 0.096 |
| Achromatopsia (no color) | #454545 | 0.117 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #274285
#274285
oklch(39.7% 0.117 265)
- #5B4300
#5B4300
oklch(39.8% 0.082 85.3)
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 #274285, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cobalt #1E488F ΔE 0.022
- Twilight Blue #0A437A ΔE 0.030
- Light Navy #155084 ΔE 0.041
- Dark Slate Blue #483D8B ΔE 0.048
- Dusk Blue #26538D ΔE 0.049
- Blueberry #464196 ΔE 0.052
- Deep Sea Blue #015482 ΔE 0.055
- Marine Blue #01386A ΔE 0.064
Use #274285 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.