#4451B4
Closest named color: Iris (#6258C4). oklch(48.1% 0.156 273.4), rgb(68, 81, 180).
Aa
White text reads best on this color (6.81:1).
About this color
#4451B4 is a medium-dark, vivid blue. In OKLCH its lightness is 48%, its chroma 0.156 and its hue 273°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.055 away. White text reads best on it, at 6.81:1.
| Hue family | Blues |
| Lightness | medium-dark (48%) |
| Chroma | vivid (0.156) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.08:1 |
| White text | 6.81:1 |
Values
| HEX | #4451B4 |
| RGB | rgb(68, 81, 180) |
| HSL | hsl(233, 45%, 49%) |
| OKLCH | oklch(48.1% 0.156 273.4) |
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 #4451B4 | 6.81:1 | AA | Lc -88.2 | Fine for body text |
| Black text on #4451B4 | 3.08:1 | AA large text | Lc 20.9 | Dividers and decoration only |
| #4451B4 text on white | 6.81:1 | AA | Lc 83.2 | Fine for body text |
| #4451B4 text on black | 3.08:1 | AA large text | Lc -18.8 | 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
#E5E9F9
oklch(93.6% 0.022 274.7)
-
Step 200
200
#D0D8F6
oklch(88.6% 0.042 273.7)
-
Step 300
300
#B0BEF2
oklch(80.9% 0.075 272.9)
-
Step 400
400
#889AEC
oklch(70.6% 0.122 273.5)
-
Step 500
500
#6D7FE6
oklch(63.1% 0.155 273.7)
-
Step 600
600
#5666D4
oklch(55.6% 0.168 273.4)
-
Step 700
700 (this color)
#4451B4
oklch(48.1% 0.156 273.4)
-
Step 800
800
#3A4594
oklch(42.6% 0.129 273.6)
-
Step 900
900
#313B76
oklch(37.6% 0.101 273.4)
-
Step 950
950
#1D2345
oklch(27% 0.063 273.9)
#4451B4 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) | #0660B7 | 0.053 |
| Deuteranopia (no green cones) | #0056B2 | 0.049 |
| Tritanopia (no blue cones) | #00687A | 0.133 |
| Achromatopsia (no color) | #5B5B5B | 0.156 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4451B4
#4451B4
oklch(48.1% 0.156 273.4)
- #715C00
#715C00
oklch(48.2% 0.099 93.4)
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 #4451B4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.055
- Blue With A Hint Of Purple #533CC6 ΔE 0.056
- Blueberry #464196 ΔE 0.060
- Bluey Purple #6241C7 ΔE 0.062
- Blue Blue #2242C7 ΔE 0.063
- Warm Blue #4B57DB ΔE 0.063
- Blurple #5539CC ΔE 0.065
- Denim Blue #3B5B92 ΔE 0.065
Use #4451B4 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.