#455CD7
Closest named color: Warm Blue (#4B57DB). oklch(52.9% 0.19 270.5), rgb(69, 92, 215).
Aa
White text reads best on this color (5.57:1).
About this color
#455CD7 is a medium-dark, vivid blue. In OKLCH its lightness is 53%, its chroma 0.190 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is Warm Blue (#4B57DB), ΔE 0.014 away. White text reads best on it, at 5.57:1.
| Hue family | Blues |
| Lightness | medium-dark (53%) |
| Chroma | vivid (0.190) |
| Temperature | cool |
| Nearest name | Warm Blue (#4B57DB) |
| Black text | 3.76:1 |
| White text | 5.57:1 |
Values
| HEX | #455CD7 |
| RGB | rgb(69, 92, 215) |
| HSL | hsl(231, 65%, 56%) |
| OKLCH | oklch(52.9% 0.19 270.5) |
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 #455CD7 | 5.57:1 | AA | Lc -82.7 | Fine for body text |
| Black text on #455CD7 | 3.76:1 | AA large text | Lc 26.7 | Dividers and decoration only |
| #455CD7 text on white | 5.57:1 | AA | Lc 77.4 | Fine for body text |
| #455CD7 text on black | 3.76:1 | AA large text | Lc -24.4 | 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
#E3E9FB
oklch(93.5% 0.025 271.1)
-
Step 200
200
#CDD8F9
oklch(88.4% 0.047 270.8)
-
Step 300
300
#ABBEF9
oklch(80.8% 0.086 270.6)
-
Step 400
400
#819BF6
oklch(70.8% 0.137 270.5)
-
Step 500
500
#637FF2
oklch(63.2% 0.174 270.5)
-
Step 600
600 (this color)
#455CD7
oklch(52.9% 0.19 270.5)
-
Step 700
700
#3E52C3
oklch(49.1% 0.177 270.8)
-
Step 800
800
#33449D
oklch(42.6% 0.146 270.8)
-
Step 900
900
#2C3B7D
oklch(37.8% 0.113 270.5)
-
Step 950
950
#192349
oklch(27% 0.072 270)
#455CD7 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) | #006FDB | 0.054 |
| Deuteranopia (no green cones) | #0062D5 | 0.043 |
| Tritanopia (no blue cones) | #007A90 | 0.155 |
| Achromatopsia (no color) | #686868 | 0.190 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #455CD7
#455CD7
oklch(52.9% 0.19 270.5)
- #836800
#836800
oklch(52.9% 0.108 90.8)
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 #455CD7, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Warm Blue #4B57DB ΔE 0.014
- Royal Blue #4169E1 ΔE 0.034
- Neon Blue #4361EE ΔE 0.037
- Azul #1D5DEC ΔE 0.045
- Dark Periwinkle #665FD1 ΔE 0.047
- Iris #6258C4 ΔE 0.048
- Slate Blue #6A5ACD ΔE 0.053
- Light Indigo #6D5ACF ΔE 0.056
Use #455CD7 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.