#274170
Closest named color: Twilight Blue (#0A437A). oklch(38% 0.087 261.3), rgb(39, 65, 112).
Aa
White text reads best on this color (10.11:1).
About this color
#274170 is a dark, moderately saturated blue. In OKLCH its lightness is 38%, its chroma 0.087 and its hue 261°. 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 10.11:1.
| Hue family | Blues |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.087) |
| Temperature | cool |
| Nearest name | Twilight Blue (#0A437A) |
| Black text | 2.07:1 |
| White text | 10.11:1 |
Values
| HEX | #274170 |
| RGB | rgb(39, 65, 112) |
| HSL | hsl(219, 48%, 30%) |
| OKLCH | oklch(38% 0.087 261.3) |
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 #274170 | 10.11:1 | AAA | Lc -97.4 | Preferred for body text |
| Black text on #274170 | 2.07:1 | Fails | Lc 10.6 | Not readable |
| #274170 text on white | 10.11:1 | AAA | Lc 93.3 | Preferred for body text |
| #274170 text on black | 2.07:1 | Fails | Lc -9.2 | 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
#F2F6FB
oklch(97.2% 0.008 253.9)
-
Step 100
100
#E3EAF7
oklch(93.6% 0.019 263)
-
Step 200
200
#CCDAF2
oklch(88.5% 0.036 261.3)
-
Step 300
300
#A9C2EB
oklch(80.9% 0.064 260.3)
-
Step 400
400
#7CA1E2
oklch(70.8% 0.104 261.3)
-
Step 500
500
#5B88D9
oklch(63.1% 0.132 261.4)
-
Step 600
600
#4070C7
oklch(55.6% 0.145 261.2)
-
Step 700
700
#325DAC
oklch(49% 0.135 261.4)
-
Step 800
800
#2A4D8B
oklch(42.8% 0.111 260.9)
-
Step 900
900 (this color)
#274170
oklch(38% 0.087 261.3)
-
Step 950
950
#172641
oklch(27% 0.055 261.4)
#274170 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) | #2C4572 | 0.014 |
| Deuteranopia (no green cones) | #223E6F | 0.011 |
| Tritanopia (no blue cones) | #004C53 | 0.074 |
| Achromatopsia (no color) | #424242 | 0.087 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #274170
#274170
oklch(38% 0.087 261.3)
- #573D00
#573D00
oklch(37.9% 0.078 81.4)
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 #274170, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight Blue #0A437A ΔE 0.026
- Dark Grey Blue #29465B ΔE 0.043
- Marine Blue #01386A ΔE 0.045
- Light Navy #155084 ΔE 0.050
- Cobalt #1E488F ΔE 0.053
- Prussian Blue #1D3557 ΔE 0.056
- Charcoal #264653 ΔE 0.057
- Deep Sea Blue #015482 ΔE 0.059
Use #274170 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.