#455B5D
Closest named color: YInMn Blue (#415A77). oklch(45.4% 0.027 203.2), rgb(69, 91, 93).
Aa
White text reads best on this color (7.22:1).
About this color
#455B5D is a medium-dark close to neutral grey. In OKLCH its lightness is 45%, its chroma 0.027. It has too little chroma to lean warm or cool. The nearest named color is YInMn Blue (#415A77), ΔE 0.044 away. White text reads best on it, at 7.22:1.
| Hue family | Neutrals |
| Lightness | medium-dark (45%) |
| Chroma | close to neutral grey (0.027) |
| Temperature | neutral |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 2.90:1 |
| White text | 7.22:1 |
Values
| HEX | #455B5D |
| RGB | rgb(69, 91, 93) |
| HSL | hsl(185, 15%, 32%) |
| OKLCH | oklch(45.4% 0.027 203.2) |
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 #455B5D | 7.22:1 | AAA | Lc -90.0 | Fine for body text |
| Black text on #455B5D | 2.90:1 | Fails | Lc 19.0 | Dividers and decoration only |
| #455B5D text on white | 7.22:1 | AAA | Lc 85.1 | Fine for body text |
| #455B5D text on black | 2.90:1 | Fails | Lc -16.9 | 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 800.
-
Step 50
50
#F4F6F6
oklch(97.2% 0.002 197.1)
-
Step 100
100
#E6EBEB
oklch(93.6% 0.005 197.1)
-
Step 200
200
#D3DBDC
oklch(88.6% 0.009 205.9)
-
Step 300
300
#B6C4C5
oklch(81% 0.015 202)
-
Step 400
400
#8FA6A7
oklch(70.8% 0.026 199.8)
-
Step 500
500
#739092
oklch(63.2% 0.033 201.6)
-
Step 600
600
#5B7A7C
oklch(55.6% 0.036 201.1)
-
Step 700
700
#4B6669
oklch(49% 0.032 204.7)
-
Step 800
800 (this color)
#455B5D
oklch(45.4% 0.027 203.2)
-
Step 900
900
#354546
oklch(37.7% 0.021 201.1)
-
Step 950
950
#1F2829
oklch(26.9% 0.013 204.7)
#455B5D 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) | #58595D | 0.028 |
| Deuteranopia (no green cones) | #53565D | 0.024 |
| Tritanopia (no blue cones) | #3D5D5C | 0.012 |
| Achromatopsia (no color) | #575757 | 0.027 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #455B5D
#455B5D
oklch(45.4% 0.027 203.2)
- #65514F
#65514F
oklch(45.5% 0.027 24.9)
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 #455B5D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.044
- Slate #516572 ΔE 0.045
- Dark Green Blue #1F6357 ΔE 0.047
- Petrol #005F6A ΔE 0.051
- Dusty Grape #545775 ΔE 0.051
- Dark Slate Gray #2F4F4F ΔE 0.052
- Dark Aqua #05696B ΔE 0.056
- Deep Teal #00555A ΔE 0.062
Use #455B5D 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.