#274677
Closest named color: Twilight Blue (#0A437A). oklch(39.6% 0.091 259.2), rgb(39, 70, 119).
Aa
White text reads best on this color (9.42:1).
About this color
#274677 is a dark, moderately saturated blue. In OKLCH its lightness is 40%, its chroma 0.091 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight Blue (#0A437A), ΔE 0.026 away. White text reads best on it, at 9.42:1.
| Hue family | Blues |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.091) |
| Temperature | cool |
| Nearest name | Twilight Blue (#0A437A) |
| Black text | 2.22:1 |
| White text | 9.42:1 |
Values
| HEX | #274677 |
| RGB | rgb(39, 70, 119) |
| HSL | hsl(217, 51%, 31%) |
| OKLCH | oklch(39.6% 0.091 259.2) |
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 #274677 | 9.42:1 | AAA | Lc -95.9 | Preferred for body text |
| Black text on #274677 | 2.22:1 | Fails | Lc 12.4 | Not readable |
| #274677 text on white | 9.42:1 | AAA | Lc 91.6 | Preferred for body text |
| #274677 text on black | 2.22:1 | Fails | Lc -10.8 | 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
#E2EAF7
oklch(93.5% 0.02 260.2)
-
Step 200
200
#CADAF3
oklch(88.4% 0.039 259.3)
-
Step 300
300
#A7C2ED
oklch(80.9% 0.068 259.6)
-
Step 400
400
#77A2E5
oklch(70.8% 0.109 259)
-
Step 500
500
#5389DD
oklch(63.2% 0.14 258.9)
-
Step 600
600
#3871CB
oklch(55.7% 0.152 259.3)
-
Step 700
700
#2A5EAF
oklch(49.1% 0.141 259.1)
-
Step 800
800
#244D8E
oklch(42.7% 0.117 259.3)
-
Step 900
900 (this color)
#274677
oklch(39.6% 0.091 259.2)
-
Step 950
950
#142642
oklch(26.9% 0.058 258.9)
#274677 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) | #304A79 | 0.017 |
| Deuteranopia (no green cones) | #254376 | 0.010 |
| Tritanopia (no blue cones) | #005158 | 0.075 |
| Achromatopsia (no color) | #464646 | 0.091 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #274677
#274677
oklch(39.6% 0.091 259.2)
- #5E4000
#5E4000
oklch(39.5% 0.082 78.6)
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 #274677, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight Blue #0A437A ΔE 0.026
- Light Navy #155084 ΔE 0.034
- Cobalt #1E488F ΔE 0.040
- Deep Sea Blue #015482 ΔE 0.044
- Dusk Blue #26538D ΔE 0.048
- Dark Grey Blue #29465B ΔE 0.049
- Marine Blue #01386A ΔE 0.059
- Dark Slate Blue #483D8B ΔE 0.063
Use #274677 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.