#455B7A
Closest named color: YInMn Blue (#415A77). oklch(46.6% 0.057 257), rgb(69, 91, 122).
Aa
White text reads best on this color (6.92:1).
About this color
#455B7A is a medium-dark, muted blue. In OKLCH its lightness is 47%, its chroma 0.057 and its hue 257°. Its hue sits on the cool side of the wheel. The nearest named color is YInMn Blue (#415A77), ΔE 0.008 away. White text reads best on it, at 6.92:1.
| Hue family | Blues |
| Lightness | medium-dark (47%) |
| Chroma | muted (0.057) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 3.03:1 |
| White text | 6.92:1 |
Values
| HEX | #455B7A |
| RGB | rgb(69, 91, 122) |
| HSL | hsl(215, 28%, 37%) |
| OKLCH | oklch(46.6% 0.057 257) |
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 #455B7A | 6.92:1 | AA | Lc -88.9 | Fine for body text |
| Black text on #455B7A | 3.03:1 | AA large text | Lc 20.1 | Dividers and decoration only |
| #455B7A text on white | 6.92:1 | AA | Lc 83.9 | Fine for body text |
| #455B7A text on black | 3.03:1 | AA large text | Lc -18.0 | 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
#F4F5F8
oklch(97% 0.004 271.4)
-
Step 100
100
#E6EAEF
oklch(93.5% 0.008 253.9)
-
Step 200
200
#D3DAE4
oklch(88.6% 0.016 257.2)
-
Step 300
300
#B5C2D3
oklch(80.9% 0.028 255.1)
-
Step 400
400
#8FA2BD
oklch(70.7% 0.045 257.2)
-
Step 500
500
#748BAC
oklch(63.1% 0.057 257.4)
-
Step 600
600
#5C7598
oklch(55.7% 0.062 256.9)
-
Step 700
700 (this color)
#455B7A
oklch(46.6% 0.057 257)
-
Step 800
800
#3E5069
oklch(42.7% 0.048 256.7)
-
Step 900
900
#354255
oklch(37.6% 0.037 257.8)
-
Step 950
950
#1F2732
oklch(27% 0.024 256.4)
#455B7A 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) | #505D7B | 0.017 |
| Deuteranopia (no green cones) | #495779 | 0.012 |
| Tritanopia (no blue cones) | #326266 | 0.051 |
| Achromatopsia (no color) | #5A5A5A | 0.057 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #455B7A
#455B7A
oklch(46.6% 0.057 257)
- #6C5634
#6C5634
oklch(46.7% 0.057 77.5)
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 #455B7A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.008
- Dusty Grape #545775 ΔE 0.023
- Dusk #4E5481 ΔE 0.029
- Denim #3B638C ΔE 0.033
- Light Navy Blue #2E5A88 ΔE 0.034
- Denim Blue #3B5B92 ΔE 0.041
- Slate #516572 ΔE 0.041
- Dusky Blue #475F94 ΔE 0.042
Use #455B7A 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.