#427489
Closest named color: Metallic Blue (#4F738E). oklch(53.2% 0.063 227.1), rgb(66, 116, 137).
Aa
White text reads best on this color (5.13:1).
About this color
#427489 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 53%, its chroma 0.063 and its hue 227°. Its hue sits on the cool side of the wheel. The nearest named color is Metallic Blue (#4F738E), ΔE 0.017 away. White text reads best on it, at 5.13:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (53%) |
| Chroma | muted (0.063) |
| Temperature | cool |
| Nearest name | Metallic Blue (#4F738E) |
| Black text | 4.09:1 |
| White text | 5.13:1 |
Values
| HEX | #427489 |
| RGB | rgb(66, 116, 137) |
| HSL | hsl(198, 35%, 40%) |
| OKLCH | oklch(53.2% 0.063 227.1) |
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 #427489 | 5.13:1 | AA | Lc -80.6 | Fine for body text |
| Black text on #427489 | 4.09:1 | AA large text | Lc 28.8 | Dividers and decoration only |
| #427489 text on white | 5.13:1 | AA | Lc 75.3 | Fine for body text |
| #427489 text on black | 4.09:1 | AA large text | Lc -26.5 | 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 600.
-
Step 50
50
#F3F6F7
oklch(97.1% 0.003 219.5)
-
Step 100
100
#E4EBEE
oklch(93.6% 0.009 225.1)
-
Step 200
200
#CFDBE1
oklch(88.4% 0.015 229)
-
Step 300
300
#AEC5CF
oklch(80.9% 0.029 225.8)
-
Step 400
400
#83A7B7
oklch(70.7% 0.046 226.9)
-
Step 500
500
#6391A5
oklch(63.1% 0.058 227)
-
Step 600
600 (this color)
#427489
oklch(53.2% 0.063 227.1)
-
Step 700
700
#3A687B
oklch(49.2% 0.059 226.7)
-
Step 800
800
#305464
oklch(42.6% 0.049 228.3)
-
Step 900
900
#2B4651
oklch(37.7% 0.038 225.7)
-
Step 950
950
#1A2930
oklch(27.1% 0.024 228.7)
#427489 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) | #69728A | 0.048 |
| Deuteranopia (no green cones) | #5F6A89 | 0.043 |
| Tritanopia (no blue cones) | #1A7A7B | 0.044 |
| Achromatopsia (no color) | #6E6E6E | 0.063 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #427489
#427489
oklch(53.2% 0.063 227.1)
- #8B614D
#8B614D
oklch(53.2% 0.063 46.4)
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 #427489, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Metallic Blue #4F738E ΔE 0.017
- Dull Blue #49759C ΔE 0.032
- Cerulean #457B9D ΔE 0.034
- Ocean #017B92 ΔE 0.036
- Sea Blue #047495 ΔE 0.038
- Stormy Blue #507B9C ΔE 0.038
- Muted Blue #3B719F ΔE 0.039
- Deep Aqua #08787F ΔE 0.041
Use #427489 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.