#427684
Closest named color: Metallic Blue (#4F738E). oklch(53.5% 0.06 217.1), rgb(66, 118, 132).
Aa
White text reads best on this color (5.05:1).
About this color
#427684 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 54%, its chroma 0.060 and its hue 217°. Its hue sits on the cool side of the wheel. The nearest named color is Metallic Blue (#4F738E), ΔE 0.025 away. White text reads best on it, at 5.05:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (54%) |
| Chroma | muted (0.060) |
| Temperature | cool |
| Nearest name | Metallic Blue (#4F738E) |
| Black text | 4.15:1 |
| White text | 5.05:1 |
Values
| HEX | #427684 |
| RGB | rgb(66, 118, 132) |
| HSL | hsl(193, 33%, 39%) |
| OKLCH | oklch(53.5% 0.06 217.1) |
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 #427684 | 5.05:1 | AA | Lc -80.2 | Fine for body text |
| Black text on #427684 | 4.15:1 | AA large text | Lc 29.3 | Dividers and decoration only |
| #427684 text on white | 5.05:1 | AA | Lc 74.8 | Content text, not long reading |
| #427684 text on black | 4.15:1 | AA large text | Lc -26.9 | 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
#E4EBED
oklch(93.5% 0.008 216.6)
-
Step 200
200
#CFDCE0
oklch(88.6% 0.015 218.1)
-
Step 300
300
#AEC5CC
oklch(80.8% 0.027 218)
-
Step 400
400
#83A8B2
oklch(70.8% 0.043 216.1)
-
Step 500
500
#62929F
oklch(63% 0.055 216.6)
-
Step 600
600 (this color)
#427684
oklch(53.5% 0.06 217.1)
-
Step 700
700
#396975
oklch(49.2% 0.056 215.8)
-
Step 800
800
#305560
oklch(42.6% 0.046 219)
-
Step 900
900
#2B464E
oklch(37.6% 0.035 218.5)
-
Step 950
950
#19292E
oklch(26.9% 0.023 219.4)
#427684 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) | #6D7385 | 0.053 |
| Deuteranopia (no green cones) | #626B84 | 0.048 |
| Tritanopia (no blue cones) | #1E7B7A | 0.037 |
| Achromatopsia (no color) | #6F6F6F | 0.060 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #427684
#427684
oklch(53.5% 0.06 217.1)
- #8C6155
#8C6155
oklch(53.5% 0.06 36.2)
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 #427684, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Metallic Blue #4F738E ΔE 0.025
- Deep Aqua #08787F ΔE 0.036
- Ocean #017B92 ΔE 0.036
- Cerulean #457B9D ΔE 0.039
- Dull Blue #49759C ΔE 0.041
- Stormy Blue #507B9C ΔE 0.042
- Bluegreen #017A79 ΔE 0.043
- Sea Blue #047495 ΔE 0.044
Use #427684 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.