#5153BA
Closest named color: Iris (#6258C4). oklch(49.8% 0.159 278.1), rgb(81, 83, 186).
Aa
White text reads best on this color (6.37:1).
About this color
#5153BA is a medium-dark, vivid blue. In OKLCH its lightness is 50%, its chroma 0.159 and its hue 278°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.033 away. White text reads best on it, at 6.37:1.
| Hue family | Blues |
| Lightness | medium-dark (50%) |
| Chroma | vivid (0.159) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.29:1 |
| White text | 6.37:1 |
Values
| HEX | #5153BA |
| RGB | rgb(81, 83, 186) |
| HSL | hsl(239, 43%, 52%) |
| OKLCH | oklch(49.8% 0.159 278.1) |
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 #5153BA | 6.37:1 | AA | Lc -86.5 | Fine for body text |
| Black text on #5153BA | 3.29:1 | AA large text | Lc 22.7 | Dividers and decoration only |
| #5153BA text on white | 6.37:1 | AA | Lc 81.4 | Fine for body text |
| #5153BA text on black | 3.29:1 | AA large text | Lc -20.5 | 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
#D2D7F6
oklch(88.5% 0.043 278.2)
-
Step 300
300
#B5BCF2
oklch(80.9% 0.077 278.8)
-
Step 400
400
#8F98EC
oklch(70.7% 0.123 278.1)
-
Step 500
500
#757CE6
oklch(63.1% 0.157 278)
-
Step 600
600
#6063D4
oklch(55.7% 0.17 278.2)
-
Step 700
700 (this color)
#5153BA
oklch(49.8% 0.159 278.1)
-
Step 800
800
#414395
oklch(42.8% 0.132 278.2)
-
Step 900
900
#363976
oklch(37.6% 0.102 278.1)
-
Step 950
950
#202245
oklch(27% 0.064 278.7)
#5153BA 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) | #0A64BE | 0.066 |
| Deuteranopia (no green cones) | #005BB8 | 0.064 |
| Tritanopia (no blue cones) | #186B7E | 0.139 |
| Achromatopsia (no color) | #5F5F5F | 0.159 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5153BA
#5153BA
oklch(49.8% 0.159 278.1)
- #726200
#726200
oklch(49.7% 0.103 98)
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 #5153BA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.033
- Bluey Purple #6241C7 ΔE 0.049
- Warm Blue #4B57DB ΔE 0.052
- Slate Blue #6A5ACD ΔE 0.052
- Blue With A Hint Of Purple #533CC6 ΔE 0.054
- Dark Periwinkle #665FD1 ΔE 0.057
- Light Indigo #6D5ACF ΔE 0.058
- Blurple #5539CC ΔE 0.061
Use #5153BA 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.