#455E6A
Closest named color: YInMn Blue (#415A77). oklch(46.6% 0.036 229), rgb(69, 94, 106).
Aa
White text reads best on this color (6.85:1).
About this color
#455E6A is a medium-dark, muted teal or cyan. In OKLCH its lightness is 47%, its chroma 0.036 and its hue 229°. Its hue sits on the cool side of the wheel. The nearest named color is YInMn Blue (#415A77), ΔE 0.028 away. White text reads best on it, at 6.85:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (47%) |
| Chroma | muted (0.036) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 3.06:1 |
| White text | 6.85:1 |
Values
| HEX | #455E6A |
| RGB | rgb(69, 94, 106) |
| HSL | hsl(199, 21%, 34%) |
| OKLCH | oklch(46.6% 0.036 229) |
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 #455E6A | 6.85:1 | AA | Lc -88.7 | Fine for body text |
| Black text on #455E6A | 3.06:1 | AA large text | Lc 20.4 | Dividers and decoration only |
| #455E6A text on white | 6.85:1 | AA | Lc 83.7 | Fine for body text |
| #455E6A text on black | 3.06:1 | AA large text | Lc -18.3 | 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
#F4F6F7
oklch(97.2% 0.003 228.8)
-
Step 100
100
#E7EAEC
oklch(93.5% 0.004 236.5)
-
Step 200
200
#D3DADE
oklch(88.4% 0.009 232.4)
-
Step 300
300
#B6C3CA
oklch(80.9% 0.017 231)
-
Step 400
400
#90A4AF
oklch(70.7% 0.028 231.8)
-
Step 500
500
#748E9B
oklch(63.1% 0.035 229.6)
-
Step 600
600
#5C7885
oklch(55.6% 0.038 228)
-
Step 700
700 (this color)
#455E6A
oklch(46.6% 0.036 229)
-
Step 800
800
#3E525C
oklch(42.6% 0.03 229.9)
-
Step 900
900
#35444B
oklch(37.6% 0.023 228)
-
Step 950
950
#1F282C
oklch(27% 0.015 226.6)
#455E6A 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) | #585D6B | 0.027 |
| Deuteranopia (no green cones) | #52596A | 0.022 |
| Tritanopia (no blue cones) | #396162 | 0.024 |
| Achromatopsia (no color) | #5A5A5A | 0.036 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #455E6A
#455E6A
oklch(46.6% 0.036 229)
- #6B5448
#6B5448
oklch(46.6% 0.036 49)
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 #455E6A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.028
- Slate #516572 ΔE 0.029
- Dusty Grape #545775 ΔE 0.038
- Petrol #005F6A ΔE 0.050
- Dark Aqua #05696B ΔE 0.053
- Denim #3B638C ΔE 0.054
- Dark Green Blue #1F6357 ΔE 0.056
- Dusk #4E5481 ΔE 0.057
Use #455E6A 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.