#2355CF
Closest named color: Blue Blue (#2242C7). oklch(49.5% 0.196 263.8), rgb(35, 85, 207).
Aa
White text reads best on this color (6.41:1).
About this color
#2355CF is a medium-dark, vivid blue. In OKLCH its lightness is 49%, its chroma 0.196 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Blue Blue (#2242C7), ΔE 0.045 away. White text reads best on it, at 6.41:1.
| Hue family | Blues |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.196) |
| Temperature | cool |
| Nearest name | Blue Blue (#2242C7) |
| Black text | 3.27:1 |
| White text | 6.41:1 |
Values
| HEX | #2355CF |
| RGB | rgb(35, 85, 207) |
| HSL | hsl(223, 71%, 47%) |
| OKLCH | oklch(49.5% 0.196 263.8) |
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 #2355CF | 6.41:1 | AA | Lc -86.3 | Fine for body text |
| Black text on #2355CF | 3.27:1 | AA large text | Lc 22.9 | Dividers and decoration only |
| #2355CF text on white | 6.41:1 | AA | Lc 81.2 | Fine for body text |
| #2355CF text on black | 3.27:1 | AA large text | Lc -20.7 | 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
#F1F6FE
oklch(97.2% 0.012 259.8)
-
Step 100
100
#E1EAFD
oklch(93.6% 0.028 265.4)
-
Step 200
200
#C7DAFD
oklch(88.5% 0.053 262.7)
-
Step 300
300
#A1C0FF
oklch(80.8% 0.096 264.1)
-
Step 400
400
#6F9DFF
oklch(70.7% 0.152 263.9)
-
Step 500
500
#4A81FD
oklch(63.1% 0.194 263.8)
-
Step 600
600
#2E66EC
oklch(55.5% 0.211 263.7)
-
Step 700
700 (this color)
#2355CF
oklch(49.5% 0.196 263.8)
-
Step 800
800
#1D45A6
oklch(42.6% 0.163 263.8)
-
Step 900
900
#1D3C84
oklch(37.8% 0.127 263.8)
-
Step 950
950
#11244D
oklch(27.1% 0.08 263.3)
#2355CF 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) | #0067D3 | 0.043 |
| Deuteranopia (no green cones) | #0057CD | 0.015 |
| Tritanopia (no blue cones) | #00748A | 0.151 |
| Achromatopsia (no color) | #5F5F5F | 0.197 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2355CF
#2355CF
oklch(49.5% 0.196 263.8)
- #7D5C00
#7D5C00
oklch(49.6% 0.102 84.1)
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 #2355CF, closest first.
No curated palette has a color within ΔE 0.04 of #2355CF.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue Blue #2242C7 ΔE 0.045
- Warm Blue #4B57DB ΔE 0.046
- Azul #1D5DEC ΔE 0.048
- Majorelle Blue #3F37C9 ΔE 0.064
- Royal Blue #4169E1 ΔE 0.066
- Neon Blue #4361EE ΔE 0.066
- Blue With A Hint Of Purple #533CC6 ΔE 0.071
- Mid Blue #276AB3 ΔE 0.074
Use #2355CF 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.