#27445B
Closest named color: Dark Grey Blue (#29465B). oklch(37.5% 0.053 243.8), rgb(39, 68, 91).
Aa
White text reads best on this color (10.17:1).
About this color
#27445B is a dark, muted blue. In OKLCH its lightness is 37%, its chroma 0.053 and its hue 244°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.007 away. White text reads best on it, at 10.17:1.
| Hue family | Blues |
| Lightness | dark (37%) |
| Chroma | muted (0.053) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.06:1 |
| White text | 10.17:1 |
Values
| HEX | #27445B |
| RGB | rgb(39, 68, 91) |
| HSL | hsl(207, 40%, 25%) |
| OKLCH | oklch(37.5% 0.053 243.8) |
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 #27445B | 10.17:1 | AAA | Lc -97.6 | Preferred for body text |
| Black text on #27445B | 2.06:1 | Fails | Lc 10.4 | Not readable |
| #27445B text on white | 10.17:1 | AAA | Lc 93.5 | Preferred for body text |
| #27445B text on black | 2.06:1 | Fails | Lc -9.0 | 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 900.
-
Step 50
50
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E4EBF1
oklch(93.6% 0.011 243.7)
-
Step 200
200
#CDDBE7
oklch(88.4% 0.022 243.8)
-
Step 300
300
#ACC4D9
oklch(80.9% 0.04 244.7)
-
Step 400
400
#7FA6C6
oklch(70.8% 0.063 243.6)
-
Step 500
500
#5D8FB7
oklch(63.1% 0.081 243.7)
-
Step 600
600
#4279A3
oklch(55.7% 0.088 243.4)
-
Step 700
700
#34658C
oklch(49% 0.082 244.7)
-
Step 800
800
#2B5371
oklch(42.7% 0.067 242.9)
-
Step 900
900 (this color)
#27445B
oklch(37.5% 0.053 243.8)
-
Step 950
950
#182836
oklch(27% 0.034 245.9)
#27445B 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) | #3A445C | 0.025 |
| Deuteranopia (no green cones) | #333F5B | 0.021 |
| Tritanopia (no blue cones) | #084A4C | 0.044 |
| Achromatopsia (no color) | #414141 | 0.053 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #27445B
#27445B
oklch(37.5% 0.053 243.8)
- #553B22
#553B22
oklch(37.6% 0.053 63.9)
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 #27445B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.007
- Charcoal #264653 ΔE 0.017
- Dark Blue Grey #1F3B4D ΔE 0.037
- Charcoal Grey #3C4142 ΔE 0.047
- Dark Slate Gray #2F4F4F ΔE 0.049
- Dark Teal #014D4E ΔE 0.049
- Midnight Green #073B4C ΔE 0.049
- Onyx #343A40 ΔE 0.049
Use #27445B 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.