#556897
Closest named color: Dusky Blue (#475F94). oklch(52.2% 0.078 266.9), rgb(85, 104, 151).
Aa
White text reads best on this color (5.50:1).
About this color
#556897 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 52%, its chroma 0.078 and its hue 267°. Its hue sits on the cool side of the wheel. The nearest named color is Dusky Blue (#475F94), ΔE 0.034 away. White text reads best on it, at 5.50:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.078) |
| Temperature | cool |
| Nearest name | Dusky Blue (#475F94) |
| Black text | 3.81:1 |
| White text | 5.50:1 |
Values
| HEX | #556897 |
| RGB | rgb(85, 104, 151) |
| HSL | hsl(223, 28%, 46%) |
| OKLCH | oklch(52.2% 0.078 266.9) |
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 #556897 | 5.50:1 | AA | Lc -82.7 | Fine for body text |
| Black text on #556897 | 3.81:1 | AA large text | Lc 26.6 | Dividers and decoration only |
| #556897 text on white | 5.50:1 | AA | Lc 77.4 | Fine for body text |
| #556897 text on black | 3.81:1 | AA large text | Lc -24.3 | 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
#F4F5F9
oklch(97.1% 0.005 275)
-
Step 100
100
#E6EAF1
oklch(93.6% 0.01 261.8)
-
Step 200
200
#D3D9E8
oklch(88.5% 0.022 268.4)
-
Step 300
300
#B6C1DA
oklch(81% 0.037 266.6)
-
Step 400
400
#8FA0C7
oklch(70.6% 0.06 266.4)
-
Step 500
500
#7488B9
oklch(63% 0.078 267.1)
-
Step 600
600
#5D72A5
oklch(55.7% 0.084 266.6)
-
Step 700
700 (this color)
#556897
oklch(52.2% 0.078 266.9)
-
Step 800
800
#3F4E73
oklch(42.8% 0.065 266.8)
-
Step 900
900
#35415D
oklch(37.7% 0.051 266.2)
-
Step 950
950
#1F2636
oklch(26.9% 0.032 266.1)
#556897 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) | #576C99 | 0.012 |
| Deuteranopia (no green cones) | #516696 | 0.008 |
| Tritanopia (no blue cones) | #3E7279 | 0.070 |
| Achromatopsia (no color) | #696969 | 0.078 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #556897
#556897
oklch(52.2% 0.078 266.9)
- #7D6630
#7D6630
oklch(52.1% 0.078 86.4)
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 #556897, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusky Blue #475F94 ΔE 0.034
- Muted Blue #3B719F ΔE 0.035
- Dull Blue #49759C ΔE 0.037
- French Blue #436BAD ΔE 0.038
- Metallic Blue #4F738E ΔE 0.039
- Denim #3B638C ΔE 0.040
- Flat Blue #3C73A8 ΔE 0.041
- Denim Blue #3B5B92 ΔE 0.053
Use #556897 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.