#455E83
Closest named color: Denim (#3B638C). oklch(47.8% 0.067 258), rgb(69, 94, 131).
Aa
White text reads best on this color (6.59:1).
About this color
#455E83 is a medium-dark, muted blue. In OKLCH its lightness is 48%, its chroma 0.067 and its hue 258°. Its hue sits on the cool side of the wheel. The nearest named color is Denim (#3B638C), ΔE 0.020 away. White text reads best on it, at 6.59:1.
| Hue family | Blues |
| Lightness | medium-dark (48%) |
| Chroma | muted (0.067) |
| Temperature | cool |
| Nearest name | Denim (#3B638C) |
| Black text | 3.18:1 |
| White text | 6.59:1 |
Values
| HEX | #455E83 |
| RGB | rgb(69, 94, 131) |
| HSL | hsl(216, 31%, 39%) |
| OKLCH | oklch(47.8% 0.067 258) |
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 #455E83 | 6.59:1 | AA | Lc -87.6 | Fine for body text |
| Black text on #455E83 | 3.18:1 | AA large text | Lc 21.5 | Dividers and decoration only |
| #455E83 text on white | 6.59:1 | AA | Lc 82.6 | Fine for body text |
| #455E83 text on black | 3.18:1 | AA large text | Lc -19.3 | 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 700.
-
Step 50
50
#F4F6F8
oklch(97.2% 0.003 247.9)
-
Step 100
100
#E6EAF0
oklch(93.6% 0.009 258.3)
-
Step 200
200
#D2DAE5
oklch(88.6% 0.017 256.3)
-
Step 300
300
#B4C2D6
oklch(81% 0.032 257.2)
-
Step 400
400
#8DA2C2
oklch(70.7% 0.053 258.7)
-
Step 500
500
#708BB2
oklch(63.1% 0.067 257.5)
-
Step 600
600
#59759E
oklch(55.7% 0.072 257.8)
-
Step 700
700 (this color)
#455E83
oklch(47.8% 0.067 258)
-
Step 800
800
#3C506E
oklch(42.8% 0.056 258.3)
-
Step 900
900
#334259
oklch(37.6% 0.044 258.8)
-
Step 950
950
#1E2734
oklch(27% 0.028 257.5)
#455E83 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) | #506085 | 0.017 |
| Deuteranopia (no green cones) | #495A82 | 0.012 |
| Tritanopia (no blue cones) | #2C666B | 0.060 |
| Achromatopsia (no color) | #5D5D5D | 0.067 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #455E83
#455E83
oklch(47.8% 0.067 258)
- #72582F
#72582F
oklch(47.8% 0.067 77.4)
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 #455E83, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Denim #3B638C ΔE 0.020
- YInMn Blue #415A77 ΔE 0.022
- Dusky Blue #475F94 ΔE 0.028
- Dusk #4E5481 ΔE 0.030
- Denim Blue #3B5B92 ΔE 0.030
- Dusty Grape #545775 ΔE 0.031
- Light Navy Blue #2E5A88 ΔE 0.031
- Slate #516572 ΔE 0.043
Use #455E83 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.