#5451BC
Closest named color: Iris (#6258C4). oklch(49.8% 0.164 279.9), rgb(84, 81, 188).
Aa
White text reads best on this color (6.40:1).
About this color
#5451BC is a medium-dark, vivid blue. In OKLCH its lightness is 50%, its chroma 0.164 and its hue 280°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.031 away. White text reads best on it, at 6.40:1.
| Hue family | Blues |
| Lightness | medium-dark (50%) |
| Chroma | vivid (0.164) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.28:1 |
| White text | 6.40:1 |
Values
| HEX | #5451BC |
| RGB | rgb(84, 81, 188) |
| HSL | hsl(242, 44%, 53%) |
| OKLCH | oklch(49.8% 0.164 279.9) |
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 #5451BC | 6.40:1 | AA | Lc -86.6 | Fine for body text |
| Black text on #5451BC | 3.28:1 | AA large text | Lc 22.6 | Dividers and decoration only |
| #5451BC text on white | 6.40:1 | AA | Lc 81.5 | Fine for body text |
| #5451BC text on black | 3.28:1 | 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
#F4F5FD
oklch(97.2% 0.011 280.5)
-
Step 100
100
#E6E9F9
oklch(93.6% 0.022 277.5)
-
Step 200
200
#D3D7F6
oklch(88.6% 0.043 279.7)
-
Step 300
300
#B6BCF4
oklch(81% 0.079 279.7)
-
Step 400
400
#9197EE
oklch(70.7% 0.127 279.6)
-
Step 500
500
#787AE8
oklch(63% 0.162 279.9)
-
Step 600
600
#6361D6
oklch(55.7% 0.175 279.9)
-
Step 700
700 (this color)
#5451BC
oklch(49.8% 0.164 279.9)
-
Step 800
800
#434196
oklch(42.6% 0.136 280)
-
Step 900
900
#383878
oklch(37.7% 0.106 280)
-
Step 950
950
#212146
oklch(26.9% 0.067 280.9)
#5451BC 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) | #0063C0 | 0.072 |
| Deuteranopia (no green cones) | #005BBA | 0.069 |
| Tritanopia (no blue cones) | #216A7E | 0.142 |
| Achromatopsia (no color) | #5F5F5F | 0.164 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5451BC
#5451BC
oklch(49.8% 0.164 279.9)
- #716300
#716300
oklch(49.8% 0.103 99.6)
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 #5451BC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.031
- Bluey Purple #6241C7 ΔE 0.043
- Blue With A Hint Of Purple #533CC6 ΔE 0.048
- Slate Blue #6A5ACD ΔE 0.049
- Warm Blue #4B57DB ΔE 0.050
- Light Indigo #6D5ACF ΔE 0.055
- Dark Periwinkle #665FD1 ΔE 0.055
- Blurple #5539CC ΔE 0.056
Use #5451BC 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.