#275A7B
Closest named color: Light Navy Blue (#2E5A88). oklch(44.8% 0.077 240), rgb(39, 90, 123).
Aa
White text reads best on this color (7.40:1).
About this color
#275A7B is a dark, moderately saturated blue. In OKLCH its lightness is 45%, its chroma 0.077 and its hue 240°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy Blue (#2E5A88), ΔE 0.023 away. White text reads best on it, at 7.40:1.
| Hue family | Blues |
| Lightness | dark (45%) |
| Chroma | moderately saturated (0.077) |
| Temperature | cool |
| Nearest name | Light Navy Blue (#2E5A88) |
| Black text | 2.83:1 |
| White text | 7.40:1 |
Values
| HEX | #275A7B |
| RGB | rgb(39, 90, 123) |
| HSL | hsl(204, 52%, 32%) |
| OKLCH | oklch(44.8% 0.077 240) |
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 #275A7B | 7.40:1 | AAA | Lc -90.4 | Preferred for body text |
| Black text on #275A7B | 2.83:1 | Fails | Lc 18.5 | Dividers and decoration only |
| #275A7B text on white | 7.40:1 | AAA | Lc 85.5 | Fine for body text |
| #275A7B text on black | 2.83:1 | Fails | Lc -16.5 | Dividers and decoration only |
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
#E2EBF2
oklch(93.5% 0.014 241)
-
Step 200
200
#CBDCE8
oklch(88.5% 0.025 238.4)
-
Step 300
300
#A7C5DB
oklch(80.8% 0.045 239.9)
-
Step 400
400
#77A7C9
oklch(70.7% 0.072 239.9)
-
Step 500
500
#5291BB
oklch(63.2% 0.091 239.6)
-
Step 600
600
#337AA8
oklch(55.5% 0.1 240.5)
-
Step 700
700
#256790
oklch(49.2% 0.093 240)
-
Step 800
800 (this color)
#275A7B
oklch(44.8% 0.077 240)
-
Step 900
900
#21465E
oklch(37.8% 0.059 239.4)
-
Step 950
950
#142937
oklch(27% 0.038 239.4)
#275A7B 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) | #4B5A7D | 0.041 |
| Deuteranopia (no green cones) | #3F527A | 0.032 |
| Tritanopia (no blue cones) | #006265 | 0.054 |
| Achromatopsia (no color) | #555555 | 0.077 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #275A7B
#275A7B
oklch(44.8% 0.077 240)
- #744A25
#744A25
oklch(44.9% 0.077 60.2)
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 #275A7B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy Blue #2E5A88 ΔE 0.023
- YInMn Blue #415A77 ΔE 0.028
- Deep Sea Blue #015482 ΔE 0.033
- Dusk Blue #26538D ΔE 0.041
- Light Navy #155084 ΔE 0.041
- Petrol #005F6A ΔE 0.042
- Denim #3B638C ΔE 0.043
- Denim Blue #3B5B92 ΔE 0.045
Use #275A7B 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.