#455FE0
Closest named color: Warm Blue (#4B57DB). oklch(54.2% 0.198 269.9), rgb(69, 95, 224).
Aa
White text reads best on this color (5.29:1).
About this color
#455FE0 is a medium-dark, vivid blue. In OKLCH its lightness is 54%, its chroma 0.198 and its hue 270°. Its hue sits on the cool side of the wheel. The nearest named color is Warm Blue (#4B57DB), ΔE 0.020 away. White text reads best on it, at 5.29:1.
| Hue family | Blues |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.198) |
| Temperature | cool |
| Nearest name | Warm Blue (#4B57DB) |
| Black text | 3.96:1 |
| White text | 5.29:1 |
Values
| HEX | #455FE0 |
| RGB | rgb(69, 95, 224) |
| HSL | hsl(230, 71%, 57%) |
| OKLCH | oklch(54.2% 0.198 269.9) |
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 #455FE0 | 5.29:1 | AA | Lc -81.2 | Fine for body text |
| Black text on #455FE0 | 3.96:1 | AA large text | Lc 28.2 | Dividers and decoration only |
| #455FE0 text on white | 5.29:1 | AA | Lc 75.8 | Fine for body text |
| #455FE0 text on black | 3.96:1 | AA large text | Lc -25.9 | 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 600.
-
Step 50
50
#F2F5FE
oklch(97% 0.012 271.3)
-
Step 100
100
#E3EAFC
oklch(93.7% 0.025 268.8)
-
Step 200
200
#CCD8FB
oklch(88.4% 0.05 270.4)
-
Step 300
300
#AABEFB
oklch(80.8% 0.089 270.3)
-
Step 400
400
#7E9AF9
oklch(70.6% 0.143 270)
-
Step 500
500
#607EF6
oklch(63.1% 0.182 270)
-
Step 600
600 (this color)
#455FE0
oklch(54.2% 0.198 269.9)
-
Step 700
700
#3B51C7
oklch(49% 0.184 270.1)
-
Step 800
800
#3044A1
oklch(42.8% 0.152 269.6)
-
Step 900
900
#2A3A80
oklch(37.7% 0.119 270.1)
-
Step 950
950
#18234B
oklch(27.1% 0.075 269.3)
#455FE0 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) | #0073E4 | 0.055 |
| Deuteranopia (no green cones) | #0065DD | 0.041 |
| Tritanopia (no blue cones) | #007F96 | 0.160 |
| Achromatopsia (no color) | #6B6B6B | 0.198 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #455FE0
#455FE0
oklch(54.2% 0.198 269.9)
- #886B00
#886B00
oklch(54.1% 0.111 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 #455FE0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Warm Blue #4B57DB ΔE 0.020
- Neon Blue #4361EE ΔE 0.022
- Royal Blue #4169E1 ΔE 0.023
- Azul #1D5DEC ΔE 0.038
- Cerulean Blue #056EEE ΔE 0.049
- Dark Periwinkle #665FD1 ΔE 0.049
- Bright Blue #0165FC ΔE 0.056
- Slate Blue #6A5ACD ΔE 0.057
Use #455FE0 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.