#4159B5
Closest named color: Mid Blue (#276AB3). oklch(49.5% 0.148 269.4), rgb(65, 89, 181).
Aa
White text reads best on this color (6.32:1).
About this color
#4159B5 is a medium-dark, vivid blue. In OKLCH its lightness is 50%, its chroma 0.148 and its hue 269°. Its hue sits on the cool side of the wheel. The nearest named color is Mid Blue (#276AB3), ΔE 0.048 away. White text reads best on it, at 6.32:1.
| Hue family | Blues |
| Lightness | medium-dark (50%) |
| Chroma | vivid (0.148) |
| Temperature | cool |
| Nearest name | Mid Blue (#276AB3) |
| Black text | 3.32:1 |
| White text | 6.32:1 |
Values
| HEX | #4159B5 |
| RGB | rgb(65, 89, 181) |
| HSL | hsl(228, 47%, 48%) |
| OKLCH | oklch(49.5% 0.148 269.4) |
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 #4159B5 | 6.32:1 | AA | Lc -86.3 | Fine for body text |
| Black text on #4159B5 | 3.32:1 | AA large text | Lc 22.9 | Dividers and decoration only |
| #4159B5 text on white | 6.32:1 | AA | Lc 81.2 | Fine for body text |
| #4159B5 text on black | 3.32:1 | AA large text | Lc -20.7 | 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
#F3F5FC
oklch(97.1% 0.01 273.4)
-
Step 100
100
#E4EAF8
oklch(93.7% 0.02 267.3)
-
Step 200
200
#CED9F4
oklch(88.5% 0.039 267.9)
-
Step 300
300
#AEBFF0
oklch(80.9% 0.072 269.8)
-
Step 400
400
#849DE8
oklch(70.7% 0.114 269.3)
-
Step 500
500
#6683E2
oklch(63.2% 0.147 269.1)
-
Step 600
600
#4F6ACF
oklch(55.6% 0.159 269.4)
-
Step 700
700 (this color)
#4159B5
oklch(49.5% 0.148 269.4)
-
Step 800
800
#354891
oklch(42.7% 0.122 269.6)
-
Step 900
900
#2D3D74
oklch(37.6% 0.096 269.2)
-
Step 950
950
#1B2444
oklch(27% 0.061 270.1)
#4159B5 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) | #2565B8 | 0.036 |
| Deuteranopia (no green cones) | #005BB3 | 0.043 |
| Tritanopia (no blue cones) | #006E7E | 0.125 |
| Achromatopsia (no color) | #606060 | 0.148 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4159B5
#4159B5
oklch(49.5% 0.148 269.4)
- #795E00
#795E00
oklch(49.5% 0.101 89.1)
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 #4159B5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mid Blue #276AB3 ΔE 0.048
- Iris #6258C4 ΔE 0.052
- French Blue #436BAD ΔE 0.053
- Denim Blue #3B5B92 ΔE 0.058
- Dusky Blue #475F94 ΔE 0.059
- Warm Blue #4B57DB ΔE 0.061
- Twilight #4E518B ΔE 0.069
- Slate Blue #6A5ACD ΔE 0.070
Use #4159B5 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.