#55879F
Closest named color: Dusty Blue (#5A86AD). oklch(59.7% 0.065 230), rgb(85, 135, 159).
Aa
Black text reads best on this color (5.35:1).
About this color
#55879F is a medium-dark, muted teal or cyan. In OKLCH its lightness is 60%, its chroma 0.065 and its hue 230°. Its hue sits on the cool side of the wheel. The nearest named color is Dusty Blue (#5A86AD), ΔE 0.024 away. Black text reads best on it, at 5.35:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (60%) |
| Chroma | muted (0.065) |
| Temperature | cool |
| Nearest name | Dusty Blue (#5A86AD) |
| Black text | 5.35:1 |
| White text | 3.92:1 |
Values
| HEX | #55879F |
| RGB | rgb(85, 135, 159) |
| HSL | hsl(199, 30%, 48%) |
| OKLCH | oklch(59.7% 0.065 230) |
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 #55879F | 3.92:1 | AA large text | Lc -72.1 | Content text, not long reading |
| Black text on #55879F | 5.35:1 | AA | Lc 37.5 | Non-text elements, placeholder text |
| #55879F text on white | 3.92:1 | AA large text | Lc 66.6 | Content text, not long reading |
| #55879F text on black | 5.35:1 | AA | Lc -35.1 | Non-text elements, placeholder text |
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 500.
-
Step 50
50
#F3F6F8
oklch(97.1% 0.004 236.5)
-
Step 100
100
#E4EBEF
oklch(93.6% 0.009 232.4)
-
Step 200
200
#CEDCE3
oklch(88.6% 0.018 229)
-
Step 300
300
#ADC5D1
oklch(80.9% 0.031 229.3)
-
Step 400
400
#80A7BB
oklch(70.7% 0.051 230.7)
-
Step 500
500 (this color)
#55879F
oklch(59.7% 0.065 230)
-
Step 600
600
#447B95
oklch(55.6% 0.071 230.3)
-
Step 700
700
#35687F
oklch(49.2% 0.066 229.5)
-
Step 800
800
#2D5567
oklch(42.8% 0.054 229.1)
-
Step 900
900
#294654
oklch(37.7% 0.042 230.2)
-
Step 950
950
#182931
oklch(27% 0.027 229.2)
#55879F 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) | #7B85A0 | 0.047 |
| Deuteranopia (no green cones) | #707D9F | 0.041 |
| Tritanopia (no blue cones) | #338E8F | 0.047 |
| Achromatopsia (no color) | #808080 | 0.065 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #55879F
#55879F
oklch(59.7% 0.065 230)
- #A0745C
#A0745C
oklch(59.7% 0.066 49.7)
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 #55879F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Blue #5A86AD ΔE 0.024
- Off Blue #5684AE ΔE 0.028
- Grey Blue #647D8E ΔE 0.034
- Stormy Blue #507B9C ΔE 0.036
- Steel #738595 ΔE 0.037
- Slate Gray #708090 ΔE 0.037
- Steel Grey #6F828A ΔE 0.040
- Cerulean #457B9D ΔE 0.041
Use #55879F 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.