#045963
Closest named color: Deep Teal (#00555A). oklch(42.5% 0.072 208.2), rgb(4, 89, 99).
Aa
White text reads best on this color (8.03:1).
About this color
#045963 is a dark, moderately saturated teal or cyan. In OKLCH its lightness is 42%, its chroma 0.072 and its hue 208°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Teal (#00555A), ΔE 0.018 away. White text reads best on it, at 8.03:1.
| Hue family | Teals and cyans |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.072) |
| Temperature | cool |
| Nearest name | Deep Teal (#00555A) |
| Black text | 2.61:1 |
| White text | 8.03:1 |
Values
| HEX | #045963 |
| RGB | rgb(4, 89, 99) |
| HSL | hsl(186, 92%, 20%) |
| OKLCH | oklch(42.5% 0.072 208.2) |
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 #045963 | 8.03:1 | AAA | Lc -92.1 | Preferred for body text |
| Black text on #045963 | 2.61:1 | Fails | Lc 16.6 | Dividers and decoration only |
| #045963 text on white | 8.03:1 | AAA | Lc 87.4 | Fine for body text |
| #045963 text on black | 2.61:1 | Fails | Lc -14.7 | Not readable |
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 800.
-
Step 50
50
#F1F7F7
oklch(97.2% 0.006 197.1)
-
Step 100
100
#E1ECEE
oklch(93.5% 0.012 209.8)
-
Step 200
200
#C8DEE1
oklch(88.5% 0.024 206.6)
-
Step 300
300
#A2C9CF
oklch(81% 0.042 207.8)
-
Step 400
400
#6DADB7
oklch(70.8% 0.067 208.3)
-
Step 500
500
#3F98A5
oklch(63.1% 0.086 208.4)
-
Step 600
600
#0D8290
oklch(55.6% 0.093 208.4)
-
Step 700
700
#006E7A
oklch(49.2% 0.085 207.9)
-
Step 800
800 (this color)
#045963
oklch(42.5% 0.072 208.2)
-
Step 900
900
#144A51
oklch(37.8% 0.056 207.5)
-
Step 950
950
#0E2B30
oklch(27% 0.036 210.5)
#045963 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) | #505564 | 0.069 |
| Deuteranopia (no green cones) | #444D63 | 0.062 |
| Tritanopia (no blue cones) | #005E5C | 0.023 |
| Achromatopsia (no color) | #505050 | 0.072 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #045963
#045963
oklch(42.5% 0.072 208.2)
- #713E38
#713E38
oklch(42.5% 0.073 27.6)
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 #045963, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Teal #00555A ΔE 0.018
- Petrol #005F6A ΔE 0.020
- Dark Slate Gray #2F4F4F ΔE 0.042
- Dark Blue Green #005249 ΔE 0.045
- Dark Green Blue #1F6357 ΔE 0.046
- Dark Teal #014D4E ΔE 0.047
- Dark Aqua #05696B ΔE 0.051
- Deep Sea Blue #015482 ΔE 0.059
Use #045963 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.