#12586F
Closest named color: Petrol (#005F6A). oklch(43% 0.075 225.5), rgb(18, 88, 111).
Aa
White text reads best on this color (7.92:1).
About this color
#12586F is a dark, moderately saturated teal or cyan. In OKLCH its lightness is 43%, its chroma 0.075 and its hue 226°. 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 7.92:1.
| Hue family | Teals and cyans |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.075) |
| Temperature | cool |
| Nearest name | Petrol (#005F6A) |
| Black text | 2.65:1 |
| White text | 7.92:1 |
Values
| HEX | #12586F |
| RGB | rgb(18, 88, 111) |
| HSL | hsl(195, 72%, 25%) |
| OKLCH | oklch(43% 0.075 225.5) |
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 #12586F | 7.92:1 | AAA | Lc -91.9 | Preferred for body text |
| Black text on #12586F | 2.65:1 | Fails | Lc 16.9 | Dividers and decoration only |
| #12586F text on white | 7.92:1 | AAA | Lc 87.1 | Fine for body text |
| #12586F text on black | 2.65:1 | Fails | Lc -15.0 | 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
#C9DDE5
oklch(88.5% 0.024 223.7)
-
Step 300
300
#A3C7D6
oklch(80.8% 0.044 225.1)
-
Step 400
400
#6FAAC2
oklch(70.6% 0.071 225.6)
-
Step 500
500
#4595B3
oklch(63.2% 0.09 225.6)
-
Step 600
600
#1D7F9E
oklch(55.7% 0.097 224.7)
-
Step 700
700
#0B6B88
oklch(49.2% 0.091 225.6)
-
Step 800
800 (this color)
#12586F
oklch(43% 0.075 225.5)
-
Step 900
900
#184859
oklch(37.7% 0.058 225.1)
-
Step 950
950
#102A34
oklch(27% 0.037 225.8)
#12586F 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 | 0.056 |
| Deuteranopia (no green cones) | #3F4D6F | 0.050 |
| Tritanopia (no blue cones) | #005F60 | 0.039 |
| Achromatopsia (no color) | #515151 | 0.075 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #12586F
#12586F
oklch(43% 0.075 225.5)
- #72422B
#72422B
oklch(43.1% 0.075 45.8)
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 #12586F, 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 0.037
- Deep Sea Blue #015482 ΔE 0.038
- YInMn Blue #415A77 ΔE 0.046
- Light Navy #155084 ΔE 0.048
- Light Navy Blue #2E5A88 ΔE 0.049
- Dark Slate Gray #2F4F4F ΔE 0.054
- Dark Aqua #05696B ΔE 0.057
Use #12586F 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.