#1888AA
Closest named color: Blue NCS (#118AB2). oklch(58.4% 0.105 224.8), rgb(24, 136, 170).
Aa
Black text reads best on this color (5.14:1).
About this color
#1888AA is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 58%, its chroma 0.105 and its hue 225°. Its hue sits on the cool side of the wheel. The nearest named color is Blue NCS (#118AB2), ΔE 0.012 away. Black text reads best on it, at 5.14:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.105) |
| Temperature | cool |
| Nearest name | Blue NCS (#118AB2) |
| Black text | 5.14:1 |
| White text | 4.08:1 |
Values
| HEX | #1888AA |
| RGB | rgb(24, 136, 170) |
| HSL | hsl(194, 75%, 38%) |
| OKLCH | oklch(58.4% 0.105 224.8) |
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 #1888AA | 4.08:1 | AA large text | Lc -73.1 | Content text, not long reading |
| Black text on #1888AA | 5.14:1 | AA | Lc 36.5 | Non-text elements, placeholder text |
| #1888AA text on white | 4.08:1 | AA large text | Lc 67.6 | Content text, not long reading |
| #1888AA text on black | 5.14:1 | AA | Lc -34.1 | 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 600.
-
Step 50
50
#F1F6F9
oklch(97% 0.007 233.6)
-
Step 100
100
#E1ECF1
oklch(93.6% 0.014 226.6)
-
Step 200
200
#C8DDE6
oklch(88.5% 0.026 225.3)
-
Step 300
300
#A1C8D8
oklch(81% 0.047 224.8)
-
Step 400
400
#6AABC4
oklch(70.7% 0.076 224.6)
-
Step 500
500
#3B96B5
oklch(63.2% 0.096 224.1)
-
Step 600
600 (this color)
#1888AA
oklch(58.4% 0.105 224.8)
-
Step 700
700
#006B88
oklch(49.1% 0.093 224.9)
-
Step 800
800
#005870
oklch(42.8% 0.081 224.4)
-
Step 900
900
#11485B
oklch(37.6% 0.064 225.9)
-
Step 950
950
#0D2A35
oklch(26.9% 0.04 226.2)
#1888AA 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) | #7585AC | 0.080 |
| Deuteranopia (no green cones) | #6378AA | 0.070 |
| Tritanopia (no blue cones) | #009293 | 0.054 |
| Achromatopsia (no color) | #7E7E7E | 0.105 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1888AA
#1888AA
oklch(58.4% 0.105 224.8)
- #AF6645
#AF6645
oklch(58.5% 0.105 44.5)
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 #1888AA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue NCS #118AB2 ΔE 0.012
- Teal Blue #01889F ΔE 0.019
- Steel Blue #4682B4 ΔE 0.038
- Cool Blue #4984B8 ΔE 0.042
- Cerulean #457B9D ΔE 0.042
- Off Blue #5684AE ΔE 0.045
- Nice Blue #107AB0 ΔE 0.046
- Dusty Blue #5A86AD ΔE 0.048
Use #1888AA 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.