#275FD3
Closest named color: Azul (#1D5DEC). oklch(51.9% 0.189 262.5), rgb(39, 95, 211).
Aa
White text reads best on this color (5.73:1).
About this color
#275FD3 is a medium-dark, vivid blue. In OKLCH its lightness is 52%, its chroma 0.189 and its hue 262°. Its hue sits on the cool side of the wheel. The nearest named color is Azul (#1D5DEC), ΔE 0.039 away. White text reads best on it, at 5.73:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.189) |
| Temperature | cool |
| Nearest name | Azul (#1D5DEC) |
| Black text | 3.66:1 |
| White text | 5.73:1 |
Values
| HEX | #275FD3 |
| RGB | rgb(39, 95, 211) |
| HSL | hsl(220, 69%, 49%) |
| OKLCH | oklch(51.9% 0.189 262.5) |
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 #275FD3 | 5.73:1 | AA | Lc -83.3 | Fine for body text |
| Black text on #275FD3 | 3.66:1 | AA large text | Lc 26.0 | Dividers and decoration only |
| #275FD3 text on white | 5.73:1 | AA | Lc 78.1 | Fine for body text |
| #275FD3 text on black | 3.66:1 | AA large text | Lc -23.7 | 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 700.
-
Step 50
50
#F1F6FE
oklch(97.2% 0.012 259.8)
-
Step 100
100
#E1EAFC
oklch(93.6% 0.026 264.4)
-
Step 200
200
#C7DAFC
oklch(88.5% 0.051 262.1)
-
Step 300
300
#A1C1FC
oklch(80.9% 0.091 262.4)
-
Step 400
400
#6E9EFB
oklch(70.6% 0.146 262.6)
-
Step 500
500
#4883F9
oklch(63.2% 0.187 262.4)
-
Step 600
600
#2B69E8
oklch(55.7% 0.203 262.4)
-
Step 700
700 (this color)
#275FD3
oklch(51.9% 0.189 262.5)
-
Step 800
800
#1B47A3
oklch(42.7% 0.157 262.5)
-
Step 900
900
#1C3D81
oklch(37.7% 0.121 262.6)
-
Step 950
950
#11244C
oklch(27% 0.078 263.1)
#275FD3 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) | #006ED7 | 0.037 |
| Deuteranopia (no green cones) | #005FD1 | 0.016 |
| Tritanopia (no blue cones) | #007C90 | 0.146 |
| Achromatopsia (no color) | #666666 | 0.189 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #275FD3
#275FD3
oklch(51.9% 0.189 262.5)
- #876200
#876200
oklch(52.1% 0.107 82.7)
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 #275FD3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Azul #1D5DEC ΔE 0.039
- Warm Blue #4B57DB ΔE 0.039
- Royal Blue #4169E1 ΔE 0.043
- Neon Blue #4361EE ΔE 0.050
- Cerulean Blue #056EEE ΔE 0.053
- Mid Blue #276AB3 ΔE 0.061
- Bright Blue #0165FC ΔE 0.064
- Iris #6258C4 ΔE 0.069
Use #275FD3 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.