#456C81
Closest named color: Slate (#516572). oklch(51.1% 0.055 232.9), rgb(69, 108, 129).
Aa
White text reads best on this color (5.65:1).
About this color
#456C81 is a medium-dark, muted blue. In OKLCH its lightness is 51%, its chroma 0.055 and its hue 233°. Its hue sits on the cool side of the wheel. The nearest named color is Slate (#516572), ΔE 0.028 away. White text reads best on it, at 5.65:1.
| Hue family | Blues |
| Lightness | medium-dark (51%) |
| Chroma | muted (0.055) |
| Temperature | cool |
| Nearest name | Slate (#516572) |
| Black text | 3.71:1 |
| White text | 5.65:1 |
Values
| HEX | #456C81 |
| RGB | rgb(69, 108, 129) |
| HSL | hsl(201, 30%, 39%) |
| OKLCH | oklch(51.1% 0.055 232.9) |
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 #456C81 | 5.65:1 | AA | Lc -83.5 | Fine for body text |
| Black text on #456C81 | 3.71:1 | AA large text | Lc 25.9 | Dividers and decoration only |
| #456C81 text on white | 5.65:1 | AA | Lc 78.2 | Fine for body text |
| #456C81 text on black | 3.71:1 | AA large text | Lc -23.6 | 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
#F3F6F7
oklch(97.1% 0.003 219.5)
-
Step 100
100
#E5EBEE
oklch(93.6% 0.008 228.9)
-
Step 200
200
#D0DBE1
oklch(88.5% 0.015 231.2)
-
Step 300
300
#B0C4CF
oklch(80.9% 0.027 231.7)
-
Step 400
400
#87A6B7
oklch(70.8% 0.042 232.1)
-
Step 500
500
#6890A5
oklch(63.2% 0.054 231.6)
-
Step 600
600
#4F7A91
oklch(55.7% 0.059 232.7)
-
Step 700
700 (this color)
#456C81
oklch(51.1% 0.055 232.9)
-
Step 800
800
#355364
oklch(42.6% 0.045 234.2)
-
Step 900
900
#2E4552
oklch(37.7% 0.036 233.8)
-
Step 950
950
#1B2830
oklch(26.9% 0.023 235.8)
#456C81 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) | #626B82 | 0.037 |
| Deuteranopia (no green cones) | #596481 | 0.033 |
| Tritanopia (no blue cones) | #2B7273 | 0.041 |
| Achromatopsia (no color) | #676767 | 0.055 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #456C81
#456C81
oklch(51.1% 0.055 232.9)
- #805E48
#805E48
oklch(51.1% 0.056 54)
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 #456C81, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.028
- Metallic Blue #4F738E ΔE 0.030
- Denim #3B638C ΔE 0.039
- Dull Blue #49759C ΔE 0.046
- Sea Blue #047495 ΔE 0.046
- Muted Blue #3B719F ΔE 0.046
- Deep Aqua #08787F ΔE 0.050
- Ocean Blue #03719C ΔE 0.053
Use #456C81 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.