#445591
Closest named color: Twilight (#4E518B). oklch(46.5% 0.1 270.2), rgb(68, 85, 145).
Aa
White text reads best on this color (7.10:1).
About this color
#445591 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 46%, its chroma 0.100 and its hue 270°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.018 away. White text reads best on it, at 7.10:1.
| Hue family | Blues |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.100) |
| Temperature | cool |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.95:1 |
| White text | 7.10:1 |
Values
| HEX | #445591 |
| RGB | rgb(68, 85, 145) |
| HSL | hsl(227, 36%, 42%) |
| OKLCH | oklch(46.5% 0.1 270.2) |
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 #445591 | 7.10:1 | AAA | Lc -89.5 | Fine for body text |
| Black text on #445591 | 2.95:1 | Fails | Lc 19.5 | Dividers and decoration only |
| #445591 text on white | 7.10:1 | AAA | Lc 84.5 | Fine for body text |
| #445591 text on black | 2.95:1 | Fails | Lc -17.5 | 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
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E6EAF4
oklch(93.7% 0.014 268.5)
-
Step 200
200
#D2D9EC
oklch(88.6% 0.027 269.6)
-
Step 300
300
#B4C0E1
oklch(80.9% 0.049 269.5)
-
Step 400
400
#8E9FD2
oklch(70.8% 0.077 270.1)
-
Step 500
500
#7286C6
oklch(63.1% 0.1 270.1)
-
Step 600
600
#5B6FB2
oklch(55.6% 0.107 270.1)
-
Step 700
700 (this color)
#445591
oklch(46.5% 0.1 270.2)
-
Step 800
800
#3E4C7C
oklch(42.8% 0.082 270.3)
-
Step 900
900
#343F64
oklch(37.6% 0.065 270.4)
-
Step 950
950
#1F253B
oklch(27% 0.042 271.7)
#445591 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) | #3D5C93 | 0.020 |
| Deuteranopia (no green cones) | #345590 | 0.020 |
| Tritanopia (no blue cones) | #21626C | 0.089 |
| Achromatopsia (no color) | #585858 | 0.100 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #445591
#445591
oklch(46.5% 0.1 270.2)
- #6E5600
#6E5600
oklch(46.5% 0.095 89.9)
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 #445591, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.018
- Denim Blue #3B5B92 ΔE 0.019
- Dusk #4E5481 ΔE 0.029
- Dusky Blue #475F94 ΔE 0.029
- Light Navy Blue #2E5A88 ΔE 0.033
- Dusk Blue #26538D ΔE 0.036
- Denim #3B638C ΔE 0.044
- YInMn Blue #415A77 ΔE 0.049
Use #445591 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.