#2355CC
Closest named color: Blue Blue (#2242C7). oklch(49.2% 0.192 263.6), rgb(35, 85, 204).
Aa
White text reads best on this color (6.47:1).
About this color
#2355CC is a medium-dark, vivid blue. In OKLCH its lightness is 49%, its chroma 0.192 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Blue Blue (#2242C7), ΔE 0.044 away. White text reads best on it, at 6.47:1.
| Hue family | Blues |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.192) |
| Temperature | cool |
| Nearest name | Blue Blue (#2242C7) |
| Black text | 3.24:1 |
| White text | 6.47:1 |
Values
| HEX | #2355CC |
| RGB | rgb(35, 85, 204) |
| HSL | hsl(222, 71%, 47%) |
| OKLCH | oklch(49.2% 0.192 263.6) |
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 #2355CC | 6.47:1 | AA | Lc -86.6 | Fine for body text |
| Black text on #2355CC | 3.24:1 | AA large text | Lc 22.6 | Dividers and decoration only |
| #2355CC text on white | 6.47:1 | AA | Lc 81.5 | Fine for body text |
| #2355CC text on black | 3.24:1 | AA large text | Lc -20.4 | 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
#C8DAFC
oklch(88.6% 0.051 263.2)
-
Step 300
300
#A2C1FE
oklch(81% 0.093 263.6)
-
Step 400
400
#6F9DFD
oklch(70.6% 0.15 263.7)
-
Step 500
500
#4B81FB
oklch(63% 0.191 263.8)
-
Step 600
600
#2F67EA
oklch(55.6% 0.207 263.6)
-
Step 700
700 (this color)
#2355CC
oklch(49.2% 0.192 263.6)
-
Step 800
800
#1E46A4
oklch(42.7% 0.159 263.6)
-
Step 900
900
#1D3C82
oklch(37.6% 0.124 263.6)
-
Step 950
950
#11244C
oklch(27% 0.078 263.1)
#2355CC 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) | #0066D0 | 0.041 |
| Deuteranopia (no green cones) | #0057CA | 0.015 |
| Tritanopia (no blue cones) | #007388 | 0.148 |
| Achromatopsia (no color) | #5E5E5E | 0.193 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2355CC
#2355CC
oklch(49.2% 0.192 263.6)
- #7C5B00
#7C5B00
oklch(49.2% 0.101 83.9)
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 #2355CC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue Blue #2242C7 ΔE 0.044
- Warm Blue #4B57DB ΔE 0.048
- Azul #1D5DEC ΔE 0.053
- Majorelle Blue #3F37C9 ΔE 0.064
- Royal Blue #4169E1 ΔE 0.068
- Neon Blue #4361EE ΔE 0.070
- Blue With A Hint Of Purple #533CC6 ΔE 0.071
- Mid Blue #276AB3 ΔE 0.071
Use #2355CC 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.