#27304B
Closest named color: Space Cadet (#2B2D42). oklch(31.4% 0.05 269.3), rgb(39, 48, 75).
Aa
White text reads best on this color (13.03:1).
About this color
#27304B is a dark, muted blue. In OKLCH its lightness is 31%, its chroma 0.050 and its hue 269°. Its hue sits on the cool side of the wheel. The nearest named color is Space Cadet (#2B2D42), ΔE 0.017 away. White text reads best on it, at 13.03:1.
| Hue family | Blues |
| Lightness | dark (31%) |
| Chroma | muted (0.050) |
| Temperature | cool |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.61:1 |
| White text | 13.03:1 |
Values
| HEX | #27304B |
| RGB | rgb(39, 48, 75) |
| HSL | hsl(225, 32%, 22%) |
| OKLCH | oklch(31.4% 0.05 269.3) |
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 #27304B | 13.03:1 | AAA | Lc -102.5 | Preferred for body text |
| Black text on #27304B | 1.61:1 | Fails | Lc 0.0 | Not readable |
| #27304B text on white | 13.03:1 | AAA | Lc 99.2 | Preferred for body text |
| #27304B text on black | 1.61:1 | 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
#F3F5FB
oklch(97% 0.008 271.3)
-
Step 100
100
#E5EAF6
oklch(93.7% 0.017 267.8)
-
Step 200
200
#D0D9F0
oklch(88.6% 0.033 268.7)
-
Step 300
300
#B1C0E8
oklch(81% 0.059 268.9)
-
Step 400
400
#899EDD
oklch(70.7% 0.096 269.7)
-
Step 500
500
#6C85D3
oklch(63.1% 0.121 269.3)
-
Step 600
600
#546DC0
oklch(55.5% 0.132 269.2)
-
Step 700
700
#455BA6
oklch(49.2% 0.123 269.2)
-
Step 800
800
#394A86
oklch(42.6% 0.102 269.8)
-
Step 900
900
#313F6C
oklch(37.8% 0.079 269.3)
-
Step 950
950 (this color)
#27304B
oklch(31.4% 0.05 269.3)
#27304B 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) | #26334C | 0.009 |
| Deuteranopia (no green cones) | #232F4A | 0.007 |
| Tritanopia (no blue cones) | #1A363A | 0.046 |
| Achromatopsia (no color) | #313131 | 0.050 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #27304B
#27304B
oklch(31.4% 0.05 269.3)
- #3B3010
#3B3010
oklch(31.4% 0.05 90.2)
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 #27304B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Space Cadet #2B2D42 ΔE 0.017
- Gunmetal #293241 ΔE 0.021
- Prussian Blue #1D3557 ΔE 0.025
- Dark Blue Grey #1F3B4D ΔE 0.036
- Midnight Green #073B4C ΔE 0.044
- Oxford Blue #1B263B ΔE 0.046
- Onyx #343A40 ΔE 0.049
- Marine #042E60 ΔE 0.052
Use #27304B 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.