#1593AB
Closest named color: Blue NCS (#118AB2). oklch(61.2% 0.104 215.3), rgb(21, 147, 171).
Aa
Black text reads best on this color (5.79:1).
About this color
#1593AB is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 61%, its chroma 0.104 and its hue 215°. Its hue sits on the cool side of the wheel. The nearest named color is Blue NCS (#118AB2), ΔE 0.032 away. Black text reads best on it, at 5.79:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (61%) |
| Chroma | moderately saturated (0.104) |
| Temperature | cool |
| Nearest name | Blue NCS (#118AB2) |
| Black text | 5.79:1 |
| White text | 3.62:1 |
Values
| HEX | #1593AB |
| RGB | rgb(21, 147, 171) |
| HSL | hsl(190, 78%, 38%) |
| OKLCH | oklch(61.2% 0.104 215.3) |
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 #1593AB | 3.62:1 | AA large text | Lc -68.8 | Content text, not long reading |
| Black text on #1593AB | 5.79:1 | AA | Lc 40.7 | Non-text elements, placeholder text |
| #1593AB text on white | 3.62:1 | AA large text | Lc 63.3 | Content text, not long reading |
| #1593AB text on black | 5.79:1 | AA | Lc -38.3 | Non-text elements, placeholder text |
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 500.
-
Step 50
50
#F1F7F8
oklch(97.2% 0.007 208.8)
-
Step 100
100
#DFEDF0
oklch(93.7% 0.015 212)
-
Step 200
200
#C5DEE5
oklch(88.4% 0.028 216.4)
-
Step 300
300
#9CCAD5
oklch(81% 0.051 214)
-
Step 400
400
#60AEC1
oklch(70.8% 0.082 215.4)
-
Step 500
500 (this color)
#1593AB
oklch(61.2% 0.104 215.3)
-
Step 600
600
#008197
oklch(55.5% 0.098 215.2)
-
Step 700
700
#006D80
oklch(49.2% 0.087 215.3)
-
Step 800
800
#005969
oklch(42.7% 0.076 215.4)
-
Step 900
900
#004A58
oklch(37.7% 0.067 215.8)
-
Step 950
950
#062C34
oklch(27.2% 0.043 215.1)
#1593AB 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) | #828EAC | 0.092 |
| Deuteranopia (no green cones) | #7080AB | 0.084 |
| Tritanopia (no blue cones) | #009C9B | 0.042 |
| Achromatopsia (no color) | #868686 | 0.105 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1593AB
#1593AB
oklch(61.2% 0.104 215.3)
- #B96C58
#B96C58
oklch(61.2% 0.103 35.4)
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 #1593AB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue NCS #118AB2 ΔE 0.032
- Teal Green #0A9396 ΔE 0.034
- Teal Blue #01889F ΔE 0.035
- Sea #3C9992 ΔE 0.050
- Dark Cyan #008B8B ΔE 0.051
- Dusty Blue #5A86AD ΔE 0.056
- Blue Green #0F9B8E ΔE 0.057
- Off Blue #5684AE ΔE 0.057
Use #1593AB 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.