#27557A
Closest named color: Deep Sea Blue (#015482). oklch(43.5% 0.079 245.4), rgb(39, 85, 122).
Aa
White text reads best on this color (7.87:1).
About this color
#27557A is a dark, moderately saturated blue. In OKLCH its lightness is 44%, its chroma 0.079 and its hue 245°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Sea Blue (#015482), ΔE 0.024 away. White text reads best on it, at 7.87:1.
| Hue family | Blues |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.079) |
| Temperature | cool |
| Nearest name | Deep Sea Blue (#015482) |
| Black text | 2.66:1 |
| White text | 7.87:1 |
Values
| HEX | #27557A |
| RGB | rgb(39, 85, 122) |
| HSL | hsl(207, 52%, 32%) |
| OKLCH | oklch(43.5% 0.079 245.4) |
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 #27557A | 7.87:1 | AAA | Lc -91.8 | Preferred for body text |
| Black text on #27557A | 2.66:1 | Fails | Lc 16.9 | Dividers and decoration only |
| #27557A text on white | 7.87:1 | AAA | Lc 87.1 | Fine for body text |
| #27557A text on black | 2.66:1 | Fails | Lc -15.0 | 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 800.
-
Step 50
50
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E3EBF2
oklch(93.6% 0.013 244.3)
-
Step 200
200
#CCDBE9
oklch(88.4% 0.025 246.2)
-
Step 300
300
#A9C4DD
oklch(80.8% 0.046 246.3)
-
Step 400
400
#79A6CC
oklch(70.7% 0.074 244.6)
-
Step 500
500
#568FBF
oklch(63.1% 0.094 245.5)
-
Step 600
600
#3979AC
oklch(55.7% 0.103 245.3)
-
Step 700
700
#2B6593
oklch(49% 0.095 245.5)
-
Step 800
800 (this color)
#27557A
oklch(43.5% 0.079 245.4)
-
Step 900
900
#234560
oklch(37.8% 0.061 244.4)
-
Step 950
950
#152838
oklch(26.9% 0.039 245.4)
#27557A 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) | #45567C | 0.035 |
| Deuteranopia (no green cones) | #394E79 | 0.026 |
| Tritanopia (no blue cones) | #005E62 | 0.060 |
| Achromatopsia (no color) | #525252 | 0.080 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #27557A
#27557A
oklch(43.5% 0.079 245.4)
- #6F471B
#6F471B
oklch(43.5% 0.08 65.2)
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 #27557A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Sea Blue #015482 ΔE 0.024
- Light Navy Blue #2E5A88 ΔE 0.027
- Light Navy #155084 ΔE 0.029
- Dusk Blue #26538D ΔE 0.034
- YInMn Blue #415A77 ΔE 0.035
- Denim Blue #3B5B92 ΔE 0.048
- Dusk #4E5481 ΔE 0.050
- Petrol #005F6A ΔE 0.050
Use #27557A 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.