#445FD9
Closest named color: Warm Blue (#4B57DB). oklch(53.6% 0.189 269.5), rgb(68, 95, 217).
Aa
White text reads best on this color (5.40:1).
About this color
#445FD9 is a medium-dark, vivid blue. In OKLCH its lightness is 54%, its chroma 0.189 and its hue 270°. Its hue sits on the cool side of the wheel. The nearest named color is Warm Blue (#4B57DB), ΔE 0.019 away. White text reads best on it, at 5.40:1.
| Hue family | Blues |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.189) |
| Temperature | cool |
| Nearest name | Warm Blue (#4B57DB) |
| Black text | 3.88:1 |
| White text | 5.40:1 |
Values
| HEX | #445FD9 |
| RGB | rgb(68, 95, 217) |
| HSL | hsl(229, 66%, 56%) |
| OKLCH | oklch(53.6% 0.189 269.5) |
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 #445FD9 | 5.40:1 | AA | Lc -81.8 | Fine for body text |
| Black text on #445FD9 | 3.88:1 | AA large text | Lc 27.6 | Dividers and decoration only |
| #445FD9 text on white | 5.40:1 | AA | Lc 76.5 | Fine for body text |
| #445FD9 text on black | 3.88:1 | AA large text | Lc -25.3 | 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
#F2F5FD
oklch(97% 0.011 269.6)
-
Step 100
100
#E3EAFB
oklch(93.7% 0.024 267.9)
-
Step 200
200
#CCD8F9
oklch(88.4% 0.047 269.6)
-
Step 300
300
#ABBFF8
oklch(81% 0.084 269.5)
-
Step 400
400
#7F9BF5
oklch(70.7% 0.136 269.6)
-
Step 500
500
#607FF1
oklch(63% 0.174 269.5)
-
Step 600
600 (this color)
#445FD9
oklch(53.6% 0.189 269.5)
-
Step 700
700
#3B53C2
oklch(49% 0.175 269.6)
-
Step 800
800
#31459D
oklch(42.7% 0.145 269.6)
-
Step 900
900
#2A3B7D
oklch(37.7% 0.114 269.4)
-
Step 950
950
#192349
oklch(27% 0.072 270)
#445FD9 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) | #0071DD | 0.052 |
| Deuteranopia (no green cones) | #0063D7 | 0.040 |
| Tritanopia (no blue cones) | #007D93 | 0.153 |
| Achromatopsia (no color) | #6A6A6A | 0.189 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #445FD9
#445FD9
oklch(53.6% 0.189 269.5)
- #876900
#876900
oklch(53.6% 0.109 88.9)
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 #445FD9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Warm Blue #4B57DB ΔE 0.019
- Royal Blue #4169E1 ΔE 0.026
- Neon Blue #4361EE ΔE 0.032
- Azul #1D5DEC ΔE 0.043
- Dark Periwinkle #665FD1 ΔE 0.046
- Iris #6258C4 ΔE 0.051
- Cerulean Blue #056EEE ΔE 0.053
- Slate Blue #6A5ACD ΔE 0.054
Use #445FD9 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.