#275FBD
Closest named color: Mid Blue (#276AB3). oklch(50.2% 0.159 260.2), rgb(39, 95, 189).
Aa
White text reads best on this color (6.07:1).
About this color
#275FBD is a medium-dark, vivid blue. In OKLCH its lightness is 50%, its chroma 0.159 and its hue 260°. Its hue sits on the cool side of the wheel. The nearest named color is Mid Blue (#276AB3), ΔE 0.036 away. White text reads best on it, at 6.07:1.
| Hue family | Blues |
| Lightness | medium-dark (50%) |
| Chroma | vivid (0.159) |
| Temperature | cool |
| Nearest name | Mid Blue (#276AB3) |
| Black text | 3.45:1 |
| White text | 6.07:1 |
Values
| HEX | #275FBD |
| RGB | rgb(39, 95, 189) |
| HSL | hsl(218, 66%, 45%) |
| OKLCH | oklch(50.2% 0.159 260.2) |
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 #275FBD | 6.07:1 | AA | Lc -85.1 | Fine for body text |
| Black text on #275FBD | 3.45:1 | AA large text | Lc 24.2 | Dividers and decoration only |
| #275FBD text on white | 6.07:1 | AA | Lc 79.9 | Fine for body text |
| #275FBD text on black | 3.45:1 | AA large text | Lc -22.0 | 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
#F1F6FD
oklch(97.1% 0.011 256.7)
-
Step 100
100
#E1EAF9
oklch(93.5% 0.023 260.7)
-
Step 200
200
#C9DAF6
oklch(88.4% 0.043 260.4)
-
Step 300
300
#A4C2F3
oklch(80.9% 0.077 260.1)
-
Step 400
400
#73A1ED
oklch(70.8% 0.123 260.1)
-
Step 500
500
#4E87E7
oklch(63.1% 0.157 260.2)
-
Step 600
600
#316ED6
oklch(55.6% 0.172 260.4)
-
Step 700
700 (this color)
#275FBD
oklch(50.2% 0.159 260.2)
-
Step 800
800
#1F4B96
oklch(42.6% 0.133 260.4)
-
Step 900
900
#1F4077
oklch(37.8% 0.102 260)
-
Step 950
950
#132646
oklch(27.1% 0.065 260.2)
#275FBD 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) | #266AC0 | 0.029 |
| Deuteranopia (no green cones) | #005CBB | 0.021 |
| Tritanopia (no blue cones) | #007685 | 0.124 |
| Achromatopsia (no color) | #626262 | 0.160 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #275FBD
#275FBD
oklch(50.2% 0.159 260.2)
- #825C00
#825C00
oklch(50.2% 0.104 80.5)
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 #275FBD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mid Blue #276AB3 ΔE 0.036
- French Blue #436BAD ΔE 0.053
- Warm Blue #4B57DB ΔE 0.062
- Royal Blue #4169E1 ΔE 0.067
- Denim Blue #3B5B92 ΔE 0.069
- Iris #6258C4 ΔE 0.070
- Dusky Blue #475F94 ΔE 0.071
- Windows Blue #3778BF ΔE 0.072
Use #275FBD 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.