#2C5BC4
Closest named color: Warm Blue (#4B57DB). oklch(50.1% 0.172 263.3), rgb(44, 91, 196).
Aa
White text reads best on this color (6.17:1).
About this color
#2C5BC4 is a medium-dark, vivid blue. In OKLCH its lightness is 50%, its chroma 0.172 and its hue 263°. Its hue sits on the cool side of the wheel. The nearest named color is Warm Blue (#4B57DB), ΔE 0.049 away. White text reads best on it, at 6.17:1.
| Hue family | Blues |
| Lightness | medium-dark (50%) |
| Chroma | vivid (0.172) |
| Temperature | cool |
| Nearest name | Warm Blue (#4B57DB) |
| Black text | 3.40:1 |
| White text | 6.17:1 |
Values
| HEX | #2C5BC4 |
| RGB | rgb(44, 91, 196) |
| HSL | hsl(221, 63%, 47%) |
| OKLCH | oklch(50.1% 0.172 263.3) |
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 #2C5BC4 | 6.17:1 | AA | Lc -85.5 | Fine for body text |
| Black text on #2C5BC4 | 3.40:1 | AA large text | Lc 23.8 | Dividers and decoration only |
| #2C5BC4 text on white | 6.17:1 | AA | Lc 80.3 | Fine for body text |
| #2C5BC4 text on black | 3.40:1 | AA large text | Lc -21.5 | 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 700.
-
Step 50
50
#F2F6FD
oklch(97.2% 0.01 261.8)
-
Step 100
100
#E2EAFB
oklch(93.6% 0.025 265.6)
-
Step 200
200
#C9DAF9
oklch(88.5% 0.047 262.5)
-
Step 300
300
#A5C1F7
oklch(80.9% 0.083 263.3)
-
Step 400
400
#749FF4
oklch(70.8% 0.134 263)
-
Step 500
500
#5184EF
oklch(63.1% 0.17 263.2)
-
Step 600
600
#366ADE
oklch(55.5% 0.186 263.4)
-
Step 700
700 (this color)
#2C5BC4
oklch(50.1% 0.172 263.3)
-
Step 800
800
#23499C
oklch(42.8% 0.142 263.2)
-
Step 900
900
#213E7C
oklch(37.8% 0.111 263.2)
-
Step 950
950
#142548
oklch(27.1% 0.069 263.1)
#2C5BC4 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) | #0369C8 | 0.037 |
| Deuteranopia (no green cones) | #005BC2 | 0.021 |
| Tritanopia (no blue cones) | #007586 | 0.136 |
| Achromatopsia (no color) | #616161 | 0.173 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2C5BC4
#2C5BC4
oklch(50.1% 0.172 263.3)
- #805D00
#805D00
oklch(50.1% 0.103 82.9)
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 #2C5BC4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Warm Blue #4B57DB ΔE 0.049
- Mid Blue #276AB3 ΔE 0.051
- Blue Blue #2242C7 ΔE 0.061
- Royal Blue #4169E1 ΔE 0.062
- Azul #1D5DEC ΔE 0.062
- Iris #6258C4 ΔE 0.065
- French Blue #436BAD ΔE 0.066
- Neon Blue #4361EE ΔE 0.071
Use #2C5BC4 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.