#2A5EB5
Closest named color: Mid Blue (#276AB3). oklch(49.5% 0.149 260.1), rgb(42, 94, 181).
Aa
White text reads best on this color (6.23:1).
About this color
#2A5EB5 is a medium-dark, vivid blue. In OKLCH its lightness is 50%, its chroma 0.149 and its hue 260°. Its hue sits on the cool side of the wheel. The nearest named color is Mid Blue (#276AB3), ΔE 0.034 away. White text reads best on it, at 6.23:1.
| Hue family | Blues |
| Lightness | medium-dark (50%) |
| Chroma | vivid (0.149) |
| Temperature | cool |
| Nearest name | Mid Blue (#276AB3) |
| Black text | 3.36:1 |
| White text | 6.23:1 |
Values
| HEX | #2A5EB5 |
| RGB | rgb(42, 94, 181) |
| HSL | hsl(218, 62%, 44%) |
| OKLCH | oklch(49.5% 0.149 260.1) |
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 #2A5EB5 | 6.23:1 | AA | Lc -85.8 | Fine for body text |
| Black text on #2A5EB5 | 3.36:1 | AA large text | Lc 23.4 | Dividers and decoration only |
| #2A5EB5 text on white | 6.23:1 | AA | Lc 80.7 | Fine for body text |
| #2A5EB5 text on black | 3.36:1 | AA large text | Lc -21.2 | 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
#CADAF4
oklch(88.4% 0.04 260.1)
-
Step 300
300
#A6C2F0
oklch(80.9% 0.072 260.3)
-
Step 400
400
#76A1E8
oklch(70.7% 0.115 260.1)
-
Step 500
500
#5288E1
oklch(63.1% 0.146 259.9)
-
Step 600
600
#366FCF
oklch(55.5% 0.16 260.2)
-
Step 700
700 (this color)
#2A5EB5
oklch(49.5% 0.149 260.1)
-
Step 800
800
#234C91
oklch(42.7% 0.123 260.2)
-
Step 900
900
#214074
oklch(37.7% 0.097 260.1)
-
Step 950
950
#142644
oklch(27% 0.061 260.1)
#2A5EB5 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) | #2D67B8 | 0.025 |
| Deuteranopia (no green cones) | #005BB3 | 0.023 |
| Tritanopia (no blue cones) | #007381 | 0.116 |
| Achromatopsia (no color) | #616161 | 0.149 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2A5EB5
#2A5EB5
oklch(49.5% 0.149 260.1)
- #805A00
#805A00
oklch(49.5% 0.103 80)
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 #2A5EB5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mid Blue #276AB3 ΔE 0.034
- French Blue #436BAD ΔE 0.049
- Denim Blue #3B5B92 ΔE 0.056
- Dusky Blue #475F94 ΔE 0.060
- Peacock Blue #016795 ΔE 0.064
- Dusk Blue #26538D ΔE 0.069
- Flat Blue #3C73A8 ΔE 0.070
- Warm Blue #4B57DB ΔE 0.071
Use #2A5EB5 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.