#427083
Closest named color: Metallic Blue (#4F738E). oklch(52% 0.059 226.4), rgb(66, 112, 131).
Aa
White text reads best on this color (5.41:1).
About this color
#427083 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 52%, its chroma 0.059 and its hue 226°. 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 5.41:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (52%) |
| Chroma | muted (0.059) |
| Temperature | cool |
| Nearest name | Metallic Blue (#4F738E) |
| Black text | 3.87:1 |
| White text | 5.41:1 |
Values
| HEX | #427083 |
| RGB | rgb(66, 112, 131) |
| HSL | hsl(198, 33%, 39%) |
| OKLCH | oklch(52% 0.059 226.4) |
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 #427083 | 5.41:1 | AA | Lc -82.2 | Fine for body text |
| Black text on #427083 | 3.87:1 | AA large text | Lc 27.2 | Dividers and decoration only |
| #427083 text on white | 5.41:1 | AA | Lc 76.9 | Fine for body text |
| #427083 text on black | 3.87:1 | AA large text | Lc -24.8 | 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
#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
#497B90
oklch(55.6% 0.063 226.9)
-
Step 700
700 (this color)
#427083
oklch(52% 0.059 226.4)
-
Step 800
800
#305564
oklch(42.8% 0.049 226.1)
-
Step 900
900
#2B4651
oklch(37.7% 0.038 225.7)
-
Step 950
950
#1A2930
oklch(27.1% 0.024 228.7)
#427083 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) | #666E84 | 0.045 |
| Deuteranopia (no green cones) | #5C6783 | 0.039 |
| Tritanopia (no blue cones) | #217676 | 0.042 |
| Achromatopsia (no color) | #6A6A6A | 0.059 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #427083
#427083
oklch(52% 0.059 226.4)
- #865E4C
#865E4C
oklch(51.9% 0.059 45.2)
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 #427083, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Metallic Blue #4F738E ΔE 0.025
- Slate #516572 ΔE 0.037
- Sea Blue #047495 ΔE 0.041
- Dull Blue #49759C ΔE 0.041
- Deep Aqua #08787F ΔE 0.042
- Ocean #017B92 ΔE 0.043
- Muted Blue #3B719F ΔE 0.044
- Cerulean #457B9D ΔE 0.047
Use #427083 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.