#4B61BC
Closest named color: Iris (#6258C4). oklch(52.3% 0.145 270.5), rgb(75, 97, 188).
Aa
White text reads best on this color (5.62:1).
About this color
#4B61BC is a medium-dark, vivid blue. In OKLCH its lightness is 52%, its chroma 0.145 and its hue 270°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.039 away. White text reads best on it, at 5.62:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.145) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.73:1 |
| White text | 5.62:1 |
Values
| HEX | #4B61BC |
| RGB | rgb(75, 97, 188) |
| HSL | hsl(228, 46%, 52%) |
| OKLCH | oklch(52.3% 0.145 270.5) |
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 #4B61BC | 5.62:1 | AA | Lc -83.1 | Fine for body text |
| Black text on #4B61BC | 3.73:1 | AA large text | Lc 26.2 | Dividers and decoration only |
| #4B61BC text on white | 5.62:1 | AA | Lc 77.9 | Fine for body text |
| #4B61BC text on black | 3.73:1 | AA large text | Lc -23.9 | 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
#CFD8F4
oklch(88.4% 0.04 271.4)
-
Step 300
300
#AFBFEF
oklch(80.9% 0.07 270.4)
-
Step 400
400
#869DE7
oklch(70.8% 0.112 270.2)
-
Step 500
500
#6982DF
oklch(63% 0.143 270.5)
-
Step 600
600
#526ACD
oklch(55.6% 0.155 270.4)
-
Step 700
700 (this color)
#4B61BC
oklch(52.3% 0.145 270.5)
-
Step 800
800
#374890
oklch(42.7% 0.12 270.6)
-
Step 900
900
#2F3D73
oklch(37.7% 0.094 270.4)
-
Step 950
950
#1C2443
oklch(27% 0.059 271.1)
#4B61BC 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) | #336DBF | 0.036 |
| Deuteranopia (no green cones) | #2063BA | 0.039 |
| Tritanopia (no blue cones) | #007685 | 0.127 |
| Achromatopsia (no color) | #676767 | 0.145 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B61BC
#4B61BC
oklch(52.3% 0.145 270.5)
- #816600
#816600
oklch(52.2% 0.107 90.5)
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 #4B61BC, closest first.
No curated palette has a color within ΔE 0.04 of #4B61BC.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.039
- French Blue #436BAD ΔE 0.040
- Mid Blue #276AB3 ΔE 0.043
- Dark Periwinkle #665FD1 ΔE 0.050
- Slate Blue #6A5ACD ΔE 0.053
- Warm Blue #4B57DB ΔE 0.056
- Royal Blue #4169E1 ΔE 0.059
- Light Indigo #6D5ACF ΔE 0.059
Use #4B61BC 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.