#3554CF
Closest named color: Warm Blue (#4B57DB). oklch(50% 0.193 267.8), rgb(53, 84, 207).
Aa
White text reads best on this color (6.32:1).
About this color
#3554CF is a medium-dark, vivid blue. In OKLCH its lightness is 50%, its chroma 0.193 and its hue 268°. Its hue sits on the cool side of the wheel. The nearest named color is Warm Blue (#4B57DB), ΔE 0.034 away. White text reads best on it, at 6.32:1.
| Hue family | Blues |
| Lightness | medium-dark (50%) |
| Chroma | vivid (0.193) |
| Temperature | cool |
| Nearest name | Warm Blue (#4B57DB) |
| Black text | 3.32:1 |
| White text | 6.32:1 |
Values
| HEX | #3554CF |
| RGB | rgb(53, 84, 207) |
| HSL | hsl(228, 62%, 51%) |
| OKLCH | oklch(50% 0.193 267.8) |
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 #3554CF | 6.32:1 | AA | Lc -86.0 | Fine for body text |
| Black text on #3554CF | 3.32:1 | AA large text | Lc 23.2 | Dividers and decoration only |
| #3554CF text on white | 6.32:1 | AA | Lc 80.9 | Fine for body text |
| #3554CF text on black | 3.32:1 | AA large text | Lc -21.0 | 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
#F2F5FE
oklch(97% 0.012 271.3)
-
Step 100
100
#E2EAFD
oklch(93.7% 0.027 267.5)
-
Step 200
200
#CAD9FD
oklch(88.6% 0.052 267.4)
-
Step 300
300
#A6BFFE
oklch(80.9% 0.094 267.6)
-
Step 400
400
#789BFD
oklch(70.7% 0.149 267.7)
-
Step 500
500
#587EFB
oklch(63% 0.191 267.9)
-
Step 600
600
#4063EA
oklch(55.5% 0.207 267.9)
-
Step 700
700 (this color)
#3554CF
oklch(50% 0.193 267.8)
-
Step 800
800
#2A43A5
oklch(42.6% 0.161 267.9)
-
Step 900
900
#253A83
oklch(37.7% 0.125 267.8)
-
Step 950
950
#16234C
oklch(27% 0.078 267.7)
#3554CF 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 | 0.048 |
| Deuteranopia (no green cones) | #0059CD | 0.029 |
| Tritanopia (no blue cones) | #007389 | 0.153 |
| Achromatopsia (no color) | #606060 | 0.193 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3554CF
#3554CF
oklch(50% 0.193 267.8)
- #7C5F00
#7C5F00
oklch(50.1% 0.102 87.8)
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 #3554CF, closest first.
No curated palette has a color within ΔE 0.04 of #3554CF.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Warm Blue #4B57DB ΔE 0.034
- Azul #1D5DEC ΔE 0.050
- Blue Blue #2242C7 ΔE 0.050
- Neon Blue #4361EE ΔE 0.060
- Majorelle Blue #3F37C9 ΔE 0.060
- Blue With A Hint Of Purple #533CC6 ΔE 0.060
- Royal Blue #4169E1 ΔE 0.060
- Iris #6258C4 ΔE 0.063
Use #3554CF 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.