#2A7FE5
Closest named color: Clear Blue (#247AFD). oklch(60% 0.174 255.6), rgb(42, 127, 229).
Aa
Black text reads best on this color (5.26:1).
About this color
#2A7FE5 is a medium-dark, vivid blue. In OKLCH its lightness is 60%, its chroma 0.174 and its hue 256°. Its hue sits on the cool side of the wheel. The nearest named color is Clear Blue (#247AFD), ΔE 0.040 away. Black text reads best on it, at 5.26:1.
| Hue family | Blues |
| Lightness | medium-dark (60%) |
| Chroma | vivid (0.174) |
| Temperature | cool |
| Nearest name | Clear Blue (#247AFD) |
| Black text | 5.26:1 |
| White text | 3.98:1 |
Values
| HEX | #2A7FE5 |
| RGB | rgb(42, 127, 229) |
| HSL | hsl(213, 78%, 53%) |
| OKLCH | oklch(60% 0.174 255.6) |
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 #2A7FE5 | 3.98:1 | AA large text | Lc -72.2 | Content text, not long reading |
| Black text on #2A7FE5 | 5.26:1 | AA | Lc 37.4 | Non-text elements, placeholder text |
| #2A7FE5 text on white | 3.98:1 | AA large text | Lc 66.7 | Content text, not long reading |
| #2A7FE5 text on black | 5.26:1 | AA | Lc -35.0 | 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
#F1F6FD
oklch(97.1% 0.011 256.7)
-
Step 100
100
#DFEBFB
oklch(93.6% 0.025 255.6)
-
Step 200
200
#C5DBF9
oklch(88.5% 0.048 256.2)
-
Step 300
300
#9CC3F7
oklch(80.8% 0.085 255.8)
-
Step 400
400
#64A3F4
oklch(70.8% 0.136 255.4)
-
Step 500
500 (this color)
#2A7FE5
oklch(60% 0.174 255.6)
-
Step 600
600
#0070DD
oklch(55.6% 0.187 255.6)
-
Step 700
700
#005EBB
oklch(49.1% 0.165 255.5)
-
Step 800
800
#004C9B
oklch(42.6% 0.144 255.8)
-
Step 900
900
#0E407C
oklch(37.6% 0.114 256)
-
Step 950
950
#0B2649
oklch(27% 0.073 256.3)
#2A7FE5 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) | #4988E9 | 0.036 |
| Deuteranopia (no green cones) | #1D78E3 | 0.021 |
| Tritanopia (no blue cones) | #0097A7 | 0.130 |
| Achromatopsia (no color) | #7F7F7F | 0.174 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2A7FE5
#2A7FE5
oklch(60% 0.174 255.6)
- #AB7400
#AB7400
oklch(60.1% 0.126 75.9)
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 #2A7FE5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Clear Blue #247AFD ΔE 0.040
- Dark Sky Blue #448EE4 ΔE 0.047
- Water Blue #0E87CC ΔE 0.048
- Cerulean Blue #056EEE ΔE 0.051
- Dodger Blue #1E90FF ΔE 0.055
- Royal Blue #4169E1 ΔE 0.055
- Windows Blue #3778BF ΔE 0.058
- Soft Blue #6488EA ΔE 0.060
Use #2A7FE5 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.