#1D596A
Closest named color: Petrol (#005F6A). oklch(43.3% 0.066 220.3), rgb(29, 89, 106).
Aa
White text reads best on this color (7.80:1).
About this color
#1D596A is a dark, muted teal or cyan. In OKLCH its lightness is 43%, its chroma 0.066 and its hue 220°. Its hue sits on the cool side of the wheel. The nearest named color is Petrol (#005F6A), ΔE 0.021 away. White text reads best on it, at 7.80:1.
| Hue family | Teals and cyans |
| Lightness | dark (43%) |
| Chroma | muted (0.066) |
| Temperature | cool |
| Nearest name | Petrol (#005F6A) |
| Black text | 2.68:1 |
| White text | 7.80:1 |
Values
| HEX | #1D596A |
| RGB | rgb(29, 89, 106) |
| HSL | hsl(193, 57%, 26%) |
| OKLCH | oklch(43.3% 0.066 220.3) |
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 #1D596A | 7.80:1 | AAA | Lc -91.6 | Preferred for body text |
| Black text on #1D596A | 2.68:1 | Fails | Lc 17.2 | Dividers and decoration only |
| #1D596A text on white | 7.80:1 | AAA | Lc 86.9 | Fine for body text |
| #1D596A text on black | 2.68:1 | Fails | Lc -15.2 | 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 800.
-
Step 50
50
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E2ECEF
oklch(93.6% 0.011 217.5)
-
Step 200
200
#CADDE3
oklch(88.5% 0.022 218.6)
-
Step 300
300
#A6C7D2
oklch(80.9% 0.039 220)
-
Step 400
400
#74AABC
oklch(70.7% 0.062 220.8)
-
Step 500
500
#4D95AB
oklch(63.2% 0.079 220.2)
-
Step 600
600
#2B7F96
oklch(55.7% 0.086 219.7)
-
Step 700
700
#1C6B80
oklch(49.1% 0.08 220)
-
Step 800
800 (this color)
#1D596A
oklch(43.3% 0.066 220.3)
-
Step 900
900
#1D4855
oklch(37.7% 0.052 220.6)
-
Step 950
950
#122A32
oklch(26.9% 0.033 222)
#1D596A 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) | #4F576B | 0.055 |
| Deuteranopia (no green cones) | #444F6A | 0.049 |
| Tritanopia (no blue cones) | #005F5E | 0.034 |
| Achromatopsia (no color) | #525252 | 0.066 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1D596A
#1D596A
oklch(43.3% 0.066 220.3)
- #704434
#704434
oklch(43.4% 0.066 40.7)
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 #1D596A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Petrol #005F6A ΔE 0.021
- Deep Teal #00555A ΔE 0.033
- YInMn Blue #415A77 ΔE 0.044
- Dark Slate Gray #2F4F4F ΔE 0.047
- Deep Sea Blue #015482 ΔE 0.048
- Dark Aqua #05696B ΔE 0.051
- Dark Green Blue #1F6357 ΔE 0.052
- Light Navy Blue #2E5A88 ΔE 0.054
Use #1D596A 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.