#4254BB
Closest named color: Iris (#6258C4). oklch(49% 0.163 271.6), rgb(66, 84, 187).
Aa
White text reads best on this color (6.52:1).
About this color
#4254BB is a medium-dark, vivid blue. In OKLCH its lightness is 49%, its chroma 0.163 and its hue 272°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.050 away. White text reads best on it, at 6.52:1.
| Hue family | Blues |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.163) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.21:1 |
| White text | 6.52:1 |
Values
| HEX | #4254BB |
| RGB | rgb(66, 84, 187) |
| HSL | hsl(231, 48%, 50%) |
| OKLCH | oklch(49% 0.163 271.6) |
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 #4254BB | 6.52:1 | AA | Lc -87.1 | Fine for body text |
| Black text on #4254BB | 3.21:1 | AA large text | Lc 22.1 | Dividers and decoration only |
| #4254BB text on white | 6.52:1 | AA | Lc 82.0 | Fine for body text |
| #4254BB text on black | 3.21:1 | AA large text | Lc -19.9 | 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
#F3F5FD
oklch(97.1% 0.011 274.9)
-
Step 100
100
#E4E9FA
oklch(93.5% 0.024 272.8)
-
Step 200
200
#CED8F7
oklch(88.4% 0.044 271.3)
-
Step 300
300
#AEBEF4
oklch(80.8% 0.079 271.7)
-
Step 400
400
#859BEF
oklch(70.7% 0.126 271.7)
-
Step 500
500
#6880EA
oklch(63.2% 0.161 271.5)
-
Step 600
600
#5166D8
oklch(55.6% 0.175 271.7)
-
Step 700
700 (this color)
#4254BB
oklch(49% 0.163 271.6)
-
Step 800
800
#364597
oklch(42.5% 0.135 271.7)
-
Step 900
900
#2E3B79
oklch(37.6% 0.106 271.5)
-
Step 950
950
#1B2347
oklch(27% 0.068 271.8)
#4254BB 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) | #0063BF | 0.051 |
| Deuteranopia (no green cones) | #0058B9 | 0.045 |
| Tritanopia (no blue cones) | #006D7F | 0.137 |
| Achromatopsia (no color) | #5E5E5E | 0.163 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4254BB
#4254BB
oklch(49% 0.163 271.6)
- #755E00
#755E00
oklch(49.1% 0.1 92.1)
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 #4254BB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.050
- Warm Blue #4B57DB ΔE 0.052
- Blue With A Hint Of Purple #533CC6 ΔE 0.057
- Blue Blue #2242C7 ΔE 0.062
- Bluey Purple #6241C7 ΔE 0.062
- Mid Blue #276AB3 ΔE 0.062
- Blurple #5539CC ΔE 0.065
- Majorelle Blue #3F37C9 ΔE 0.067
Use #4254BB 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.