#2A77F4
Closest named color: Clear Blue (#247AFD). oklch(59.4% 0.202 260), rgb(42, 119, 244).
Aa
Black text reads best on this color (5.04:1).
About this color
#2A77F4 is a medium-dark, vivid blue. In OKLCH its lightness is 59%, its chroma 0.202 and its hue 260°. Its hue sits on the cool side of the wheel. The nearest named color is Clear Blue (#247AFD), ΔE 0.015 away. Black text reads best on it, at 5.04:1.
| Hue family | Blues |
| Lightness | medium-dark (59%) |
| Chroma | vivid (0.202) |
| Temperature | cool |
| Nearest name | Clear Blue (#247AFD) |
| Black text | 5.04:1 |
| White text | 4.16:1 |
Values
| HEX | #2A77F4 |
| RGB | rgb(42, 119, 244) |
| HSL | hsl(217, 90%, 56%) |
| OKLCH | oklch(59.4% 0.202 260) |
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 #2A77F4 | 4.16:1 | AA large text | Lc -73.6 | Content text, not long reading |
| Black text on #2A77F4 | 5.04:1 | AA | Lc 36.0 | Non-text elements, placeholder text |
| #2A77F4 text on white | 4.16:1 | AA large text | Lc 68.1 | Content text, not long reading |
| #2A77F4 text on black | 5.04:1 | AA | Lc -33.6 | Non-text elements, placeholder text |
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 500.
-
Step 50
50
#F0F6FF
oklch(97.1% 0.014 258.3)
-
Step 100
100
#DFEBFE
oklch(93.7% 0.029 259.6)
-
Step 200
200
#C4DAFE
oklch(88.4% 0.055 260.3)
-
Step 300
300
#9CC2FF
oklch(80.9% 0.096 259.7)
-
Step 400
400
#669FFF
oklch(70.7% 0.154 260.3)
-
Step 500
500 (this color)
#2A77F4
oklch(59.4% 0.202 260)
-
Step 600
600
#0A68F0
oklch(55.5% 0.219 259.9)
-
Step 700
700
#0056CF
oklch(49.1% 0.2 260)
-
Step 800
800
#0447A9
oklch(42.7% 0.169 259.9)
-
Step 900
900
#103D86
oklch(37.7% 0.132 260)
-
Step 950
950
#0B244E
oklch(26.9% 0.084 260.2)
#2A77F4 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) | #1D86F8 | 0.037 |
| Deuteranopia (no green cones) | #0074F2 | 0.018 |
| Tritanopia (no blue cones) | #0096AA | 0.156 |
| Achromatopsia (no color) | #7C7C7C | 0.202 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2A77F4
#2A77F4
oklch(59.4% 0.202 260)
- #A47500
#A47500
oklch(59.4% 0.123 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 #2A77F4, closest first.
No curated palette has a color within ΔE 0.04 of #2A77F4.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Clear Blue #247AFD ΔE 0.015
- Cerulean Blue #056EEE ΔE 0.030
- Royal Blue #4169E1 ΔE 0.043
- Bright Blue #0165FC ΔE 0.050
- Neon Blue #4361EE ΔE 0.052
- Cornflower #6A79F7 ΔE 0.062
- Dodger Blue #1E90FF ΔE 0.063
- Azul #1D5DEC ΔE 0.065
Use #2A77F4 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.