#1897BC
Closest named color: Blue NCS (#118AB2). oklch(63% 0.114 224.2), rgb(24, 151, 188).
Aa
Black text reads best on this color (6.19:1).
About this color
#1897BC is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 63%, its chroma 0.114 and its hue 224°. Its hue sits on the cool side of the wheel. The nearest named color is Blue NCS (#118AB2), ΔE 0.038 away. Black text reads best on it, at 6.19:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (63%) |
| Chroma | moderately saturated (0.114) |
| Temperature | cool |
| Nearest name | Blue NCS (#118AB2) |
| Black text | 6.19:1 |
| White text | 3.39:1 |
Values
| HEX | #1897BC |
| RGB | rgb(24, 151, 188) |
| HSL | hsl(194, 77%, 42%) |
| OKLCH | oklch(63% 0.114 224.2) |
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 #1897BC | 3.39:1 | AA large text | Lc -66.4 | Content text, not long reading |
| Black text on #1897BC | 6.19:1 | AA | Lc 43.2 | Non-text elements, placeholder text |
| #1897BC text on white | 3.39:1 | AA large text | Lc 60.9 | Content text, not long reading |
| #1897BC text on black | 6.19:1 | AA | Lc -40.8 | 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
#F0F7F9
oklch(97.1% 0.008 216.6)
-
Step 100
100
#DFECF2
oklch(93.5% 0.016 227)
-
Step 200
200
#C4DEE9
oklch(88.5% 0.032 225.1)
-
Step 300
300
#9AC9DC
oklch(80.9% 0.056 224.7)
-
Step 400
400
#5DADCA
oklch(70.8% 0.089 224)
-
Step 500
500 (this color)
#1897BC
oklch(63% 0.114 224.2)
-
Step 600
600
#0080A1
oklch(55.7% 0.105 224.1)
-
Step 700
700
#006B87
oklch(49% 0.092 224)
-
Step 800
800
#005870
oklch(42.8% 0.081 224.4)
-
Step 900
900
#00495D
oklch(37.7% 0.071 223.8)
-
Step 950
950
#042B37
oklch(26.9% 0.047 223.4)
#1897BC 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) | #8294BE | 0.087 |
| Deuteranopia (no green cones) | #6E85BC | 0.077 |
| Tritanopia (no blue cones) | #00A2A3 | 0.058 |
| Achromatopsia (no color) | #8B8B8B | 0.114 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1897BC
#1897BC
oklch(63% 0.114 224.2)
- #C2714D
#C2714D
oklch(63.1% 0.114 44.2)
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 #1897BC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue NCS #118AB2 ΔE 0.038
- Cool Blue #4984B8 ΔE 0.056
- Teal Blue #01889F ΔE 0.057
- Dusty Blue #5A86AD ΔE 0.058
- Faded Blue #658CBB ΔE 0.058
- Water Blue #0E87CC ΔE 0.058
- Teal Green #0A9396 ΔE 0.058
- Off Blue #5684AE ΔE 0.059
Use #1897BC 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.