#455A75
Closest named color: YInMn Blue (#415A77). oklch(46.2% 0.051 255), rgb(69, 90, 117).
Aa
White text reads best on this color (7.06:1).
About this color
#455A75 is a medium-dark, muted blue. In OKLCH its lightness is 46%, its chroma 0.051 and its hue 255°. Its hue sits on the cool side of the wheel. The nearest named color is YInMn Blue (#415A77), ΔE 0.006 away. White text reads best on it, at 7.06:1.
| Hue family | Blues |
| Lightness | medium-dark (46%) |
| Chroma | muted (0.051) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 2.97:1 |
| White text | 7.06:1 |
Values
| HEX | #455A75 |
| RGB | rgb(69, 90, 117) |
| HSL | hsl(214, 26%, 36%) |
| OKLCH | oklch(46.2% 0.051 255) |
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 #455A75 | 7.06:1 | AAA | Lc -89.4 | Fine for body text |
| Black text on #455A75 | 2.97:1 | Fails | Lc 19.6 | Dividers and decoration only |
| #455A75 text on white | 7.06:1 | AAA | Lc 84.5 | Fine for body text |
| #455A75 text on black | 2.97:1 | Fails | Lc -17.5 | 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
#E7EAEF
oklch(93.6% 0.007 260.7)
-
Step 200
200
#D3DAE2
oklch(88.5% 0.013 251.6)
-
Step 300
300
#B6C2D1
oklch(80.9% 0.025 254)
-
Step 400
400
#90A2BA
oklch(70.6% 0.041 255.7)
-
Step 500
500
#758BA8
oklch(63% 0.051 255.4)
-
Step 600
600
#5E7594
oklch(55.6% 0.056 256)
-
Step 700
700 (this color)
#455A75
oklch(46.2% 0.051 255)
-
Step 800
800
#3F5066
oklch(42.6% 0.043 255.1)
-
Step 900
900
#364353
oklch(37.8% 0.032 253.8)
-
Step 950
950
#202731
oklch(27% 0.021 257.3)
#455A75 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) | #505B76 | 0.016 |
| Deuteranopia (no green cones) | #4A5674 | 0.013 |
| Tritanopia (no blue cones) | #356063 | 0.045 |
| Achromatopsia (no color) | #585858 | 0.051 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #455A75
#455A75
oklch(46.2% 0.051 255)
- #695437
#695437
oklch(46% 0.051 74.9)
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 #455A75, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.006
- Dusty Grape #545775 ΔE 0.022
- Dusk #4E5481 ΔE 0.033
- Light Navy Blue #2E5A88 ΔE 0.039
- Denim #3B638C ΔE 0.040
- Slate #516572 ΔE 0.041
- Denim Blue #3B5B92 ΔE 0.048
- Dusky Blue #475F94 ΔE 0.050
Use #455A75 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.