#04586F
Closest named color: Petrol (#005F6A). oklch(42.8% 0.079 223.8), rgb(4, 88, 111).
Aa
White text reads best on this color (7.98:1).
About this color
#04586F is a dark, moderately saturated teal or cyan. In OKLCH its lightness is 43%, its chroma 0.079 and its hue 224°. Its hue sits on the cool side of the wheel. The nearest named color is Petrol (#005F6A), ΔE 0.026 away. White text reads best on it, at 7.98:1.
| Hue family | Teals and cyans |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.079) |
| Temperature | cool |
| Nearest name | Petrol (#005F6A) |
| Black text | 2.63:1 |
| White text | 7.98:1 |
Values
| HEX | #04586F |
| RGB | rgb(4, 88, 111) |
| HSL | hsl(193, 93%, 23%) |
| OKLCH | oklch(42.8% 0.079 223.8) |
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 #04586F | 7.98:1 | AAA | Lc -91.9 | Preferred for body text |
| Black text on #04586F | 2.63:1 | Fails | Lc 16.8 | Dividers and decoration only |
| #04586F text on white | 7.98:1 | AAA | Lc 87.2 | Fine for body text |
| #04586F text on black | 2.63:1 | Fails | Lc -14.9 | 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
#F1F6F8
oklch(97% 0.006 223.5)
-
Step 100
100
#E1ECF0
oklch(93.6% 0.013 221.4)
-
Step 200
200
#C8DDE6
oklch(88.5% 0.026 225.3)
-
Step 300
300
#A1C8D7
oklch(81% 0.046 223.3)
-
Step 400
400
#6BABC3
oklch(70.7% 0.074 223.9)
-
Step 500
500
#3D96B3
oklch(63.2% 0.094 222.9)
-
Step 600
600
#097F9F
oklch(55.5% 0.102 224)
-
Step 700
700
#006B87
oklch(49% 0.092 224)
-
Step 800
800 (this color)
#04586F
oklch(42.8% 0.079 223.8)
-
Step 900
900
#13485A
oklch(37.6% 0.062 225)
-
Step 950
950
#0E2A34
oklch(26.9% 0.038 224.5)
#04586F 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) | #4B5670 | 0.061 |
| Deuteranopia (no green cones) | #3E4D6F | 0.053 |
| Tritanopia (no blue cones) | #005F60 | 0.039 |
| Achromatopsia (no color) | #515151 | 0.079 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #04586F
#04586F
oklch(42.8% 0.079 223.8)
- #73402A
#73402A
oklch(42.9% 0.079 43.6)
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 #04586F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Petrol #005F6A ΔE 0.026
- Deep Teal #00555A ΔE 0.035
- Deep Sea Blue #015482 ΔE 0.037
- Light Navy #155084 ΔE 0.049
- YInMn Blue #415A77 ΔE 0.051
- Light Navy Blue #2E5A88 ΔE 0.052
- Dark Slate Gray #2F4F4F ΔE 0.055
- Dark Aqua #05696B ΔE 0.058
Use #04586F 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.