#2D5FB8
Closest named color: Mid Blue (#276AB3). oklch(50.1% 0.151 260.9), rgb(45, 95, 184).
Aa
White text reads best on this color (6.10:1).
About this color
#2D5FB8 is a medium-dark, vivid blue. In OKLCH its lightness is 50%, its chroma 0.151 and its hue 261°. Its hue sits on the cool side of the wheel. The nearest named color is Mid Blue (#276AB3), ΔE 0.032 away. White text reads best on it, at 6.10:1.
| Hue family | Blues |
| Lightness | medium-dark (50%) |
| Chroma | vivid (0.151) |
| Temperature | cool |
| Nearest name | Mid Blue (#276AB3) |
| Black text | 3.44:1 |
| White text | 6.10:1 |
Values
| HEX | #2D5FB8 |
| RGB | rgb(45, 95, 184) |
| HSL | hsl(218, 61%, 45%) |
| OKLCH | oklch(50.1% 0.151 260.9) |
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 #2D5FB8 | 6.10:1 | AA | Lc -85.3 | Fine for body text |
| Black text on #2D5FB8 | 3.44:1 | AA large text | Lc 24.0 | Dividers and decoration only |
| #2D5FB8 text on white | 6.10:1 | AA | Lc 80.1 | Fine for body text |
| #2D5FB8 text on black | 3.44:1 | AA large text | Lc -21.8 | 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
#F2F6FC
oklch(97.2% 0.009 258.3)
-
Step 100
100
#E2EAF8
oklch(93.5% 0.021 261.8)
-
Step 200
200
#CADAF5
oklch(88.5% 0.041 260.9)
-
Step 300
300
#A6C2F1
oklch(81% 0.073 260.7)
-
Step 400
400
#76A1E9
oklch(70.8% 0.116 260.3)
-
Step 500
500
#5387E3
oklch(63.1% 0.15 261)
-
Step 600
600
#386FD1
oklch(55.7% 0.162 260.9)
-
Step 700
700 (this color)
#2D5FB8
oklch(50.1% 0.151 260.9)
-
Step 800
800
#244C92
oklch(42.8% 0.124 260.7)
-
Step 900
900
#224075
oklch(37.8% 0.098 260.9)
-
Step 950
950
#142644
oklch(27% 0.061 260.1)
#2D5FB8 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) | #2D69BB | 0.027 |
| Deuteranopia (no green cones) | #005CB6 | 0.025 |
| Tritanopia (no blue cones) | #007482 | 0.119 |
| Achromatopsia (no color) | #626262 | 0.151 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2D5FB8
#2D5FB8
oklch(50.1% 0.151 260.9)
- #815C00
#815C00
oklch(50.1% 0.103 81.2)
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 #2D5FB8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mid Blue #276AB3 ΔE 0.032
- French Blue #436BAD ΔE 0.047
- Denim Blue #3B5B92 ΔE 0.060
- Dusky Blue #475F94 ΔE 0.062
- Warm Blue #4B57DB ΔE 0.067
- Iris #6258C4 ΔE 0.068
- Peacock Blue #016795 ΔE 0.068
- Flat Blue #3C73A8 ΔE 0.069
Use #2D5FB8 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.