#5F65BC
Closest named color: Iris (#6258C4). oklch(54.4% 0.134 278), rgb(95, 101, 188).
Aa
White text reads best on this color (5.15:1).
About this color
#5F65BC is a medium-dark, moderately saturated blue. In OKLCH its lightness is 54%, its chroma 0.134 and its hue 278°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.036 away. White text reads best on it, at 5.15:1.
| Hue family | Blues |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.134) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 4.07:1 |
| White text | 5.15:1 |
Values
| HEX | #5F65BC |
| RGB | rgb(95, 101, 188) |
| HSL | hsl(236, 41%, 55%) |
| OKLCH | oklch(54.4% 0.134 278) |
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 #5F65BC | 5.15:1 | AA | Lc -80.7 | Fine for body text |
| Black text on #5F65BC | 4.07:1 | AA large text | Lc 28.7 | Dividers and decoration only |
| #5F65BC text on white | 5.15:1 | AA | Lc 75.3 | Fine for body text |
| #5F65BC text on black | 4.07:1 | AA large text | Lc -26.4 | 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 600.
-
Step 50
50
#F4F5FB
oklch(97.1% 0.008 278.6)
-
Step 100
100
#E7E9F6
oklch(93.6% 0.018 279.1)
-
Step 200
200
#D3D8F0
oklch(88.6% 0.033 276.3)
-
Step 300
300
#B7BEE8
oklch(81% 0.06 277.6)
-
Step 400
400
#929BDC
oklch(70.7% 0.096 277.6)
-
Step 500
500
#7981D3
oklch(63.2% 0.123 278)
-
Step 600
600 (this color)
#5F65BC
oklch(54.4% 0.134 278)
-
Step 700
700
#5257A6
oklch(49.2% 0.125 278)
-
Step 800
800
#434786
oklch(42.7% 0.103 278.3)
-
Step 900
900
#383C6B
oklch(37.6% 0.08 278.1)
-
Step 950
950
#21243F
oklch(27.2% 0.05 277.7)
#5F65BC 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) | #4071BF | 0.044 |
| Deuteranopia (no green cones) | #386ABA | 0.046 |
| Tritanopia (no blue cones) | #3B7887 | 0.119 |
| Achromatopsia (no color) | #6D6D6D | 0.134 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5F65BC
#5F65BC
oklch(54.4% 0.134 278)
- #817000
#817000
oklch(54.5% 0.113 98.7)
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 #5F65BC, closest first.
No curated palette has a color within ΔE 0.04 of #5F65BC.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.036
- Dark Periwinkle #665FD1 ΔE 0.039
- Slate Blue #6A5ACD ΔE 0.042
- French Blue #436BAD ΔE 0.046
- Light Indigo #6D5ACF ΔE 0.046
- Windows Blue #3778BF ΔE 0.061
- Mid Blue #276AB3 ΔE 0.062
- Royal Blue #4169E1 ΔE 0.065
Use #5F65BC 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.