#127198
Closest named color: Ocean Blue (#03719C). oklch(51.7% 0.101 232.6), rgb(18, 113, 152).
Aa
White text reads best on this color (5.46:1).
About this color
#127198 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 52%, its chroma 0.101 and its hue 233°. Its hue sits on the cool side of the wheel. The nearest named color is Ocean Blue (#03719C), ΔE 0.007 away. White text reads best on it, at 5.46:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.101) |
| Temperature | cool |
| Nearest name | Ocean Blue (#03719C) |
| Black text | 3.84:1 |
| White text | 5.46:1 |
Values
| HEX | #127198 |
| RGB | rgb(18, 113, 152) |
| HSL | hsl(197, 79%, 33%) |
| OKLCH | oklch(51.7% 0.101 232.6) |
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 #127198 | 5.46:1 | AA | Lc -82.2 | Fine for body text |
| Black text on #127198 | 3.84:1 | AA large text | Lc 27.2 | Dividers and decoration only |
| #127198 text on white | 5.46:1 | AA | Lc 76.8 | Fine for body text |
| #127198 text on black | 3.84:1 | AA large text | Lc -24.9 | 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 700.
-
Step 50
50
#F1F6F9
oklch(97% 0.007 233.6)
-
Step 100
100
#E1ECF2
oklch(93.7% 0.014 231.2)
-
Step 200
200
#C8DDE8
oklch(88.5% 0.027 230.4)
-
Step 300
300
#A2C7DB
oklch(80.9% 0.049 231.7)
-
Step 400
400
#6DA9C9
oklch(70.6% 0.078 232.7)
-
Step 500
500
#4194BC
oklch(63.2% 0.1 232.4)
-
Step 600
600
#157DA8
oklch(55.6% 0.109 232.8)
-
Step 700
700 (this color)
#127198
oklch(51.7% 0.101 232.6)
-
Step 800
800
#0B5675
oklch(42.7% 0.084 232.8)
-
Step 900
900
#15475E
oklch(37.6% 0.065 232.4)
-
Step 950
950
#0F2A37
oklch(27.1% 0.041 231.9)
#127198 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) | #5D709A | 0.064 |
| Deuteranopia (no green cones) | #4C6497 | 0.054 |
| Tritanopia (no blue cones) | #007B7E | 0.059 |
| Achromatopsia (no color) | #696969 | 0.101 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #127198
#127198
oklch(51.7% 0.101 232.6)
- #95562B
#95562B
oklch(51.8% 0.101 52.8)
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 #127198, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Ocean Blue #03719C ΔE 0.007
- Sea Blue #047495 ΔE 0.012
- Muted Blue #3B719F ΔE 0.029
- Peacock Blue #016795 ΔE 0.031
- Ocean #017B92 ΔE 0.034
- Flat Blue #3C73A8 ΔE 0.039
- Nice Blue #107AB0 ΔE 0.042
- Dull Blue #49759C ΔE 0.044
Use #127198 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.