#17274F
Closest named color: Marine (#042E60). oklch(28.3% 0.076 265.4), rgb(23, 39, 79).
Aa
White text reads best on this color (14.58:1).
About this color
#17274F is a dark, moderately saturated blue. In OKLCH its lightness is 28%, its chroma 0.076 and its hue 265°. Its hue sits on the cool side of the wheel. The nearest named color is Marine (#042E60), ΔE 0.036 away. White text reads best on it, at 14.58:1.
| Hue family | Blues |
| Lightness | dark (28%) |
| Chroma | moderately saturated (0.076) |
| Temperature | cool |
| Nearest name | Marine (#042E60) |
| Black text | 1.43:1 |
| White text | 14.58:1 |
Values
| HEX | #17274F |
| RGB | rgb(23, 39, 79) |
| HSL | hsl(223, 55%, 20%) |
| OKLCH | oklch(28.3% 0.076 265.4) |
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 #17274F | 14.58:1 | AAA | Lc -104.1 | Preferred for body text |
| Black text on #17274F | 1.43:1 | Fails | Lc 0.0 | Not readable |
| #17274F text on white | 14.58:1 | AAA | Lc 101.2 | Preferred for body text |
| #17274F text on black | 1.43:1 | 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 950.
-
Step 50
50
#F1F5FE
oklch(97% 0.013 266.7)
-
Step 100
100
#E1EAFC
oklch(93.6% 0.026 264.4)
-
Step 200
200
#C9D9FB
oklch(88.4% 0.05 265.4)
-
Step 300
300
#A5C0FC
oklch(80.9% 0.09 265.7)
-
Step 400
400
#759DFB
oklch(70.8% 0.145 265.4)
-
Step 500
500
#5281F8
oklch(63.1% 0.185 265.3)
-
Step 600
600
#3966E7
oklch(55.5% 0.202 265.6)
-
Step 700
700
#2C54C9
oklch(49.1% 0.188 265.5)
-
Step 800
800
#2546A2
oklch(42.8% 0.154 265.3)
-
Step 900
900
#223C81
oklch(37.8% 0.121 265.4)
-
Step 950
950 (this color)
#17274F
oklch(28.3% 0.076 265.4)
#17274F 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) | #132C50 | 0.016 |
| Deuteranopia (no green cones) | #09264E | 0.015 |
| Tritanopia (no blue cones) | #003037 | 0.063 |
| Achromatopsia (no color) | #292929 | 0.076 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #17274F
#17274F
oklch(28.3% 0.076 265.4)
- #362700
#362700
oklch(28.3% 0.058 86.4)
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 #17274F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine #042E60 ΔE 0.036
- Oxford Blue #1B263B ΔE 0.037
- Space Cadet #2B2D42 ΔE 0.046
- Prussian Blue #1D3557 ΔE 0.047
- Dark #1B2431 ΔE 0.055
- Gunmetal #293241 ΔE 0.057
- Marine Blue #01386A ΔE 0.065
- Midnight Green #073B4C ΔE 0.067
Use #17274F 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.