#3554BB
Closest named color: Blue Blue (#2242C7). oklch(48.4% 0.166 267.2), rgb(53, 84, 187).
Aa
White text reads best on this color (6.69:1).
About this color
#3554BB is a medium-dark, vivid blue. In OKLCH its lightness is 48%, its chroma 0.166 and its hue 267°. Its hue sits on the cool side of the wheel. The nearest named color is Blue Blue (#2242C7), ΔE 0.052 away. White text reads best on it, at 6.69:1.
| Hue family | Blues |
| Lightness | medium-dark (48%) |
| Chroma | vivid (0.166) |
| Temperature | cool |
| Nearest name | Blue Blue (#2242C7) |
| Black text | 3.13:1 |
| White text | 6.69:1 |
Values
| HEX | #3554BB |
| RGB | rgb(53, 84, 187) |
| HSL | hsl(226, 56%, 47%) |
| OKLCH | oklch(48.4% 0.166 267.2) |
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 #3554BB | 6.69:1 | AA | Lc -87.6 | Fine for body text |
| Black text on #3554BB | 3.13:1 | AA large text | Lc 21.4 | Dividers and decoration only |
| #3554BB text on white | 6.69:1 | AA | Lc 82.6 | Fine for body text |
| #3554BB text on black | 3.13:1 | AA large text | Lc -19.3 | 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
#F2F5FD
oklch(97% 0.011 269.6)
-
Step 100
100
#E3EAFA
oklch(93.6% 0.023 266.9)
-
Step 200
200
#CCD9F8
oklch(88.5% 0.045 267.4)
-
Step 300
300
#A9C0F6
oklch(81% 0.081 266.7)
-
Step 400
400
#7D9DF1
oklch(70.7% 0.129 267.3)
-
Step 500
500
#5D82EC
oklch(63.1% 0.164 267.2)
-
Step 600
600
#4569DA
oklch(55.7% 0.178 267.1)
-
Step 700
700 (this color)
#3554BB
oklch(48.4% 0.166 267.2)
-
Step 800
800
#2D4799
oklch(42.6% 0.138 267.1)
-
Step 900
900
#283D7A
oklch(37.8% 0.107 266.9)
-
Step 950
950
#182447
oklch(27% 0.067 267.5)
#3554BB 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) | #0062BF | 0.041 |
| Deuteranopia (no green cones) | #0056B9 | 0.031 |
| Tritanopia (no blue cones) | #006D7F | 0.134 |
| Achromatopsia (no color) | #5C5C5C | 0.167 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3554BB
#3554BB
oklch(48.4% 0.166 267.2)
- #765A00
#765A00
oklch(48.3% 0.099 87.5)
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 #3554BB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue Blue #2242C7 ΔE 0.052
- Warm Blue #4B57DB ΔE 0.058
- Mid Blue #276AB3 ΔE 0.061
- Blue With A Hint Of Purple #533CC6 ΔE 0.063
- Iris #6258C4 ΔE 0.064
- Majorelle Blue #3F37C9 ΔE 0.065
- Blurple #5539CC ΔE 0.071
- Denim Blue #3B5B92 ΔE 0.071
Use #3554BB 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.