#2564C7
Closest named color: Mid Blue (#276AB3). oklch(52% 0.167 259.5), rgb(37, 100, 199).
Aa
White text reads best on this color (5.63:1).
About this color
#2564C7 is a medium-dark, vivid blue. In OKLCH its lightness is 52%, its chroma 0.167 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Mid Blue (#276AB3), ΔE 0.038 away. White text reads best on it, at 5.63:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.167) |
| Temperature | cool |
| Nearest name | Mid Blue (#276AB3) |
| Black text | 3.72:1 |
| White text | 5.63:1 |
Values
| HEX | #2564C7 |
| RGB | rgb(37, 100, 199) |
| HSL | hsl(217, 69%, 46%) |
| OKLCH | oklch(52% 0.167 259.5) |
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 #2564C7 | 5.63:1 | AA | Lc -83.0 | Fine for body text |
| Black text on #2564C7 | 3.72:1 | AA large text | Lc 26.4 | Dividers and decoration only |
| #2564C7 text on white | 5.63:1 | AA | Lc 77.7 | Fine for body text |
| #2564C7 text on black | 3.72:1 | AA large text | Lc -24.1 | 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
#F1F6FD
oklch(97.1% 0.011 256.7)
-
Step 100
100
#E1EBFA
oklch(93.7% 0.023 258.4)
-
Step 200
200
#C8DAF8
oklch(88.4% 0.046 260.7)
-
Step 300
300
#A2C2F5
oklch(80.9% 0.081 259.6)
-
Step 400
400
#6FA1F1
oklch(70.8% 0.13 259.5)
-
Step 500
500
#4887EC
oklch(63.2% 0.165 259.5)
-
Step 600
600
#296EDA
oklch(55.6% 0.18 259.4)
-
Step 700
700 (this color)
#2564C7
oklch(52% 0.167 259.5)
-
Step 800
800
#194B99
oklch(42.7% 0.138 259.4)
-
Step 900
900
#1B3F7A
oklch(37.6% 0.109 259.8)
-
Step 950
950
#112647
oklch(27.1% 0.067 259.1)
#2564C7 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) | #276FCB | 0.030 |
| Deuteranopia (no green cones) | #0060C5 | 0.020 |
| Tritanopia (no blue cones) | #007C8C | 0.129 |
| Achromatopsia (no color) | #676767 | 0.167 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2564C7
#2564C7
oklch(52% 0.167 259.5)
- #896000
#896000
oklch(51.9% 0.108 79.5)
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 #2564C7, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mid Blue #276AB3 ΔE 0.038
- Royal Blue #4169E1 ΔE 0.050
- French Blue #436BAD ΔE 0.055
- Warm Blue #4B57DB ΔE 0.055
- Azul #1D5DEC ΔE 0.060
- Windows Blue #3778BF ΔE 0.062
- Cerulean Blue #056EEE ΔE 0.063
- Neon Blue #4361EE ΔE 0.067
Use #2564C7 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.